{"id":636,"date":"2020-07-12T12:14:38","date_gmt":"2020-07-12T03:14:38","guid":{"rendered":"https:\/\/teno-hira.com\/media\/?p=636"},"modified":"2023-07-30T20:25:01","modified_gmt":"2023-07-30T11:25:01","slug":"%e3%80%90%e9%ab%98%e6%a0%a1%e6%95%b0%e5%ad%a6i%e3%80%91%e4%ba%8c%e6%ac%a1%e9%96%a2%e6%95%b0%e3%81%ae%e9%a0%82%e7%82%b9%e3%81%a8%e8%bb%b8%e3%82%92%e3%83%a9%e3%82%af%e3%81%ab%e6%b1%82%e3%82%81%e3%82%8b2","status":"publish","type":"post","link":"https:\/\/teno-hira.com\/media\/?p=636","title":{"rendered":"\u3010\u9ad8\u6821\u6570\u5b66I\u3011\u4e8c\u6b21\u95a2\u6570\u306e\u9802\u70b9\u3068\u8ef8\u3092\u30e9\u30af\u306b\u6c42\u3081\u308b2\u3064\u306e\u65b9\u6cd5\u3010\u30b0\u30e9\u30d5\u3092\u60f3\u50cf\u3057\u3088\u3046\u3011"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/teno-hira.com\/media\/wp-content\/uploads\/2020\/06\/nayamu_boy2-300x286.png\" alt=\"\" width=\"244\" height=\"233\" class=\"alignleft wp-image-66\" srcset=\"https:\/\/teno-hira.com\/media\/wp-content\/uploads\/2020\/06\/nayamu_boy2-300x286.png 300w, https:\/\/teno-hira.com\/media\/wp-content\/uploads\/2020\/06\/nayamu_boy2.png 400w\" sizes=\"auto, (max-width: 244px) 100vw, 244px\" \/><\/p>\n<div class=\"sc_frame_wrap solid custom\">\n<div class=\"sc_frame \" style=\"border-color: #efefef; background-color: #efefef; color: #333;\"><strong>\u6570\u5b66\u304c\u82e6\u624b\u306a\u9ad8\u68211\u5e74\u751f\u300c<\/strong>\u5b66\u6821\u306e\u5bbf\u984c\u3067\u4e8c\u6b21\u95a2\u6570\u306e\u554f\u984c\u3092\u51fa\u3055\u308c\u305f\u3051\u3069\u3001\u305d\u3082\u305d\u3082\u8ef8\u3068\u304b\u9802\u70b9\u3063\u3066\u3069\u3046\u3084\u3063\u3066\u6c42\u3081\u308b\u3093\u3060\u3063\u3051\uff1f\u6570\u5b66\u304c\u82e6\u624b\u306a\u50d5\u3067\u3082\u3067\u304d\u308b\u65b9\u6cd5\u3084\u3001\u516c\u5f0f\u304c\u3042\u308c\u3070\u6559\u3048\u3066\uff01<strong>\u300d<\/strong><\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u3053\u3093\u306a\u7591\u554f\u3092\u89e3\u6c7a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<div class=\"sc_designlist li fa_check blue\" id=\"table-teniis\">\n<ul>\n<li><span style=\"font-size: 14pt;\"><strong>\u672c\u65e5\u306e\u6388\u696d\u30c6\u30fc\u30de<\/strong><\/span><\/li>\n<\/ul>\n<\/div>\n<div class=\"sc_frame_wrap solid custom\" id=\"table-oneto\">\n<div class=\"sc_frame shadow \" style=\"border-color: #e6f8ff; background-color: #e6f8ff; color: #333;\"><b>\u4e8c\u6b21\u95a2\u6570 \u9802\u70b9\u3068\u8ef8\u306e\u6c42\u3081\u65b9<\/b><\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<div class=\"sc_designlist li fa_check blue\">\n<ul>\n<li><span style=\"font-size: 14pt;\"><strong>\u672c\u65e5\u306e\u6388\u696d\u5185\u5bb9<\/strong><\/span><\/li>\n<\/ul>\n<\/div>\n<div class=\"sc_frame_wrap solid custom\">\n<div class=\"sc_frame shadow \" style=\"border-color: #e6f8ff; background-color: #e6f8ff; color: #333;\">\n<ol>\n<li><strong><a href=\"https:\/\/teno-hira.com\/media\/?p=636#h2-2\">\u5e73\u65b9\u5b8c\u6210\u3092\u4f7f\u3063\u3066\u9802\u70b9\u3068\u8ef8\u3092\u6c42\u3081\u308b\u624b\u9806<\/a><\/strong><\/li>\n<li><strong><a href=\"https:\/\/teno-hira.com\/media\/?p=636#h2-3\">\u516c\u5f0f\u3092\u4f7f\u3063\u3066\u9802\u70b9\u3068\u8ef8\u3092\u6c42\u3081\u308b\u624b\u9806<\/a><\/strong><\/li>\n<li><strong><a href=\"https:\/\/teno-hira.com\/media\/?p=636#h2-4\">\u3010\u7df4\u7fd2\u554f\u984c\u3011\u4e8c\u6b21\u95a2\u6570\u306e\u9802\u70b9\u3068\u8ef8\u3092\u6c42\u3081\u3066\u307f\u3088\u3046<\/a><\/strong><\/li>\n<\/ol>\n<p>\u203b\u30ea\u30f3\u30af\u3092\u30af\u30ea\u30c3\u30af\u3059\u308c\u3070\u5404\u9805\u76ee\u3078\u30b8\u30e3\u30f3\u30d7\u3067\u304d\u307e\u3059<\/p>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<div class=\"voice clearfix left n_bottom\">\n<div class=\"icon\">\n<p><img decoding=\"async\" data-src=\"https:\/\/teno-hira.com\/media\/wp-content\/uploads\/2020\/06\/nurseman_question.png\" class=\"lazyload\" \/><\/p>\n<div class=\"name\">\u304e\u3082\u3093\u541b<\/div>\n<\/div>\n<div class=\"text sc_balloon left white\">\u5e73\u65b9\u5b8c\u6210\u304b\uff5e\u3001\u6b63\u76f4\u82e6\u624b\u306a\u3093\u3067\u3059\u3088\u306d\u3002<\/div>\n<\/div>\n<div>\n<div class=\"voice clearfix right n_bottom\">\n<div class=\"icon\">\n<p><img decoding=\"async\" data-src=\"https:\/\/teno-hira.com\/media\/wp-content\/uploads\/2020\/06\/3588888-768x768-1.jpg\" class=\"lazyload\" \/><\/p>\n<div class=\"name\">\u3066\u306e\u3072\u3089\u5148\u751f<\/div>\n<\/div>\n<div class=\"text sc_balloon right white\">\u305d\u308c\u306a\u3089\u3001\u300c\u516c\u5f0f\u3092\u4f7f\u3046\u65b9\u6cd5\u300d\u3092\u8a66\u3057\u3066\u307f\u308b\u3068\u3044\u3044\u3088\uff01<\/div>\n<\/div>\n<\/div>\n<div class=\"voice clearfix right n_bottom\">\n<div class=\"icon\">\n<p><img decoding=\"async\" data-src=\"https:\/\/teno-hira.com\/media\/wp-content\/uploads\/2020\/06\/3588888-768x768-1.jpg\" class=\"lazyload\" \/><\/p>\n<div class=\"name\">\u3066\u306e\u3072\u3089\u5148\u751f<\/div>\n<\/div>\n<div class=\"text sc_balloon right white\">\u516c\u5f0f\u3092\u4f7f\u3048\u3070\u3001\u8907\u96d1\u306a\u8a08\u7b97\u306a\u3057\u3067\u4e8c\u6b21\u95a2\u6570\u306e\u300c\u9802\u70b9\u3068\u8ef8\u300d\u3092\u6c42\u3081\u3089\u308c\u308b\u304b\u3089\u306d\u3002<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<p><strong>\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u3080\u3053\u3068\u3067\u3001\u6570\u5b66\u304c\u82e6\u624b\u306a\u3042\u306a\u305f\u3067\u3082\u3001\u7d20\u65e9\u304f\u6b63\u78ba\u306b\u300c\u4e8c\u6b21\u95a2\u6570\u306e\u9802\u70b9\u3068\u8ef8\u300d\u3092\u6c42\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/strong><\/p>\n<p>\u4f8b\u984c\u3092\u4f7f\u3063\u3066\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u30b5\u30af\u30c3\u3068\u7406\u89e3\u3067\u304d\u308b\u306f\u305a\u3067\u3059\u3088\uff01<\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u305d\u308c\u3067\u306f\u3001\u30ec\u30c3\u30c4\u30b4\u30fc\u30c3\uff01<\/strong><\/p>\n<p>&nbsp;<\/p>\n<div class=\"sc_toggle_box\">\n<div class=\"sc_toggle_title\"><strong>\u3053\u306e\u8a18\u4e8b\u3092\u66f8\u3044\u305f\u306e\u306f\u8ab0\uff1f<\/strong><\/div>\n<div class=\"sc_toggle_content\">\n<p><strong>\u3053\u306e\u8a18\u4e8b\u3092\u66f8\u3044\u3066\u3044\u308b\u79c1\u306f\u3001\u53d7\u9a13\u6307\u5c0e\u6b748\u5e74\u306e\u73fe\u5f79\u587e\u8b1b\u5e2b\u3067\u3059\u3002<\/strong><\/p>\n<p>\u51fa\u8eab\u306f\u5ca9\u624b\u770c\u3067\u3001\u7acb\u547d\u9928\u5927\u5b66\u306b\u9032\u5b66\u30fb\u5352\u696d\u3057\u305f\u5f8c\u3001\u5927\u624b\u587e\u8b1b\u5e2b\u3068\u3057\u3066200\u4eba\u4ee5\u4e0a\u306e\u4e2d\u9ad8\u751f\u306e\u52c9\u5f37\u76f8\u8ac7\u306b\u7b54\u3048\u3066\u304d\u307e\u3057\u305f\u3002<\/p>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<h2 id=\"h2-2\">\u4e8c\u6b21\u95a2\u6570\u306e\u9802\u70b9\u3068\u8ef8\u306e\u6c42\u3081\u65b9\uff08\u5e73\u65b9\u5b8c\u6210ver\uff09<\/h2>\n<p>&nbsp;<\/p>\n<p>\u307e\u305a\u306f\u3001\u4e8c\u6b21\u95a2\u6570\u306e\u9802\u70b9\u3068\u8ef8\u306e\u6c42\u3081\u65b9\u306b\u3064\u3044\u3066\u3001<strong>\u300c\u5e73\u65b9\u5b8c\u6210\u3092\u5229\u7528\u3059\u308b\u65b9\u6cd5\u300d<\/strong>\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u984c\u3092\u7528\u3044\u3064\u3064\u89e3\u8aac\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u30b9\u30c3\u3068\u7406\u89e3\u3067\u304d\u308b\u306f\u305a\u3067\u3059\u3088\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u300c\u516c\u5f0f\u3092\u5229\u7528\u3059\u308b\u65b9\u6cd5\u300d\u3092\u77e5\u308a\u305f\u3044\u65b9\u306f\u3001\u4ee5\u4e0b\u306e\u30b9\u30ad\u30c3\u30d7\u30ea\u30f3\u30af\u304b\u3089\u3069\u3046\u305e\u3002<\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u300b\u30b9\u30ad\u30c3\u30d7\uff1a<a href=\"https:\/\/teno-hira.com\/media\/?p=636#h2-3\">\u300c\u516c\u5f0f\u5229\u7528\u3092\u5229\u7528\u3059\u308b\u65b9\u6cd5\u300d\u3092\u898b\u308b<\/a><\/strong><\/p>\n<p><strong>\u300b\u30ea\u30bf\u30fc\u30f3\uff1a<a href=\"https:\/\/teno-hira.com\/media\/?p=636#table-teniis\">\u76ee\u6b21\u306b\u623b\u308b<\/a><\/strong><\/p>\n<h3>\u5e73\u65b9\u5b8c\u6210\u3063\u3066\u306a\u3093\u3060\u3063\u3051\uff1f<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" data-src=\"https:\/\/teno-hira.com\/media\/wp-content\/uploads\/2020\/07\/zheihou3-1.png\" alt=\"\" width=\"891\" height=\"523\" class=\"aligncenter size-full wp-image-830 lazyload\" data-srcset=\"https:\/\/teno-hira.com\/media\/wp-content\/uploads\/2020\/07\/zheihou3-1.png 891w, https:\/\/teno-hira.com\/media\/wp-content\/uploads\/2020\/07\/zheihou3-1-768x451.png 768w\" data-sizes=\"auto, (max-width: 891px) 100vw, 891px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>\u305d\u3082\u305d\u3082\u5e73\u65b9\u5b8c\u6210\u3068\u306f\u3001$y=ax\u00b2+bx+c$ \u306e\u5f62\u306e\u4e8c\u6b21\u95a2\u6570\u3092\u3001$y=a(x-p)\u00b2+q$ \u306b\u5909\u5f62\u3059\u308b\u3053\u3068\u3067\u3057\u305f\u306d\u3002<\/p>\n<p>\u305d\u3057\u3066\u3001\u5909\u5f62\u5f8c\u306e $p$ \u3068 $q$ \u306f\u305d\u308c\u305e\u308c\u3001\u305d\u306e\u4e8c\u6b21\u95a2\u6570\u306e $\u9802\u70b9(p,q)$ \u3092\u610f\u5473\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u3061\u306a\u307f\u306b\u3001\u5e73\u65b9\u5b8c\u6210\u306e\u3084\u308a\u65b9\u3092\u5fd8\u308c\u3066\u3057\u307e\u3063\u305f\u65b9\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u304c\u53c2\u8003\u306b\u306a\u308a\u307e\u3059\u3088\u3002<\/p>\n<p><strong>\u300b\u53c2\u8003\uff1a<a href=\"https:\/\/teno-hira.com\/media\/?p=612\">\u5e73\u65b9\u5b8c\u6210\u309210\u79d2\u3067\u7d42\u308f\u3089\u305b\u308b\u30b3\u30c4\u3068\u65b9\u6cd5\uff5c\u57fa\u672c\uff0b\u7c21\u5358\u306a\u3084\u308a\u65b9\u3092\u89e3\u8aac<\/a><\/strong><\/p>\n<p>&nbsp;<\/p>\n<h3>\u5e73\u65b9\u5b8c\u6210\u3067\u9802\u70b9\u3068\u8ef8\u3092\u6c42\u3081\u3066\u307f\u3088\u3046<\/h3>\n<p>\u3067\u306f\u65e9\u901f\u3001\u4e8c\u6b21\u95a2\u6570\u306e\u9802\u70b9\u3068\u8ef8\u3092\u5e73\u65b9\u5b8c\u6210\u3067\u6c42\u3081\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u4eca\u56de\u7528\u610f\u3057\u305f\u4f8b\u984c\u306f\u3053\u3061\u3089\u3002<\/p>\n<p>$$\\Large{y=2x\u00b2+4x+6}$$<\/p>\n<p>&nbsp;<\/p>\n<p>\u5e73\u65b9\u5b8c\u6210\u3092\u884c\u3046\u5834\u5408\u3001\u3068\u306b\u304b\u304f $x\u00b2$ \u3068 $x$ \u306b\u6ce8\u76ee\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u307e\u305a\u306f $x\u00b2$ \u306e\u4fc2\u6570 $2$ \u3067\u3001$2x\u00b2+4x$ \u3092\u304f\u304f\u3063\u3066<\/p>\n<p>$$y=\\color{red}2(x\u00b2+2x)\\color{black}+6$$<\/p>\n<p>&nbsp;<\/p>\n<p>$x$ \u306e\u4fc2\u6570 $2$ \u306e\u534a\u5206\u306e $1$ \u306e\u5e73\u65b9 $(1)\u00b2$ \u3092\u52dd\u624b\u306b\u4f5c\u3063\u3066\u52a0\u3048\u3001\u52a0\u3048\u305f\u5206\u3092\u5f15\u304f\u3068<\/p>\n<p>$$=2[x\u00b2+2x+\\color{red}(1)\u00b2-(1)\u00b2\\color{black}]+6$$<\/p>\n<p>&nbsp;<\/p>\n<p>\u3053\u306e\u6642\u3001$x\u00b2+2x+(1)\u00b2$ \u306b\u6ce8\u76ee\u3059\u308b\u3068\u3001$(x+1)\u00b2$ \u306b\u56e0\u6570\u5206\u89e3\u3067\u304d\u308b\u306e\u304c\u5206\u304b\u308b\u3002<\/p>\n<p>$$=2[\\color{red}x\u00b2+2x+(1)\u00b2\\color{black}-(1)\u00b2]+6$$<\/p>\n<p>&nbsp;<\/p>\n<p>\u3088\u3063\u3066\u3001$x\u00b2+2x+(1)\u00b2$ \u3092\u3001\u56e0\u6570\u5206\u89e3\u3059\u308b\u3068<\/p>\n<p>$$=2[\\color{red}(x+1)\u00b2\\color{black}-(1)\u00b2]+6$$<\/p>\n<p>&nbsp;<\/p>\n<p>\u6700\u5f8c\u306b\u3001\u4f59\u8a08\u306a $-1$ \u3092\u30ab\u30c3\u30b3\u306e\u5916\u306b\u51fa\u3057\u3066\u3001\u8a08\u7b97\u3057\u305f\u3089\u5e73\u65b9\u5b8c\u6210\u306f\u5b8c\u4e86\u3067\u3059\u3002<\/p>\n<p>$$=2(x+1)\u00b2\\color{red}-2+6$$<\/p>\n<p>$$=2(x+1)\u00b2+4$$<\/p>\n<p>&nbsp;<\/p>\n<p>$y=2(x+1)\u00b2+4$ \u3092 $y=a(x-p)\u00b2+q$ \u306e\u5f62\u306b\u5f53\u3066\u306f\u3081\u308b\u3068\u3001<\/p>\n<p>$$p=-1$$<\/p>\n<p>$$q=4$$<\/p>\n<p>&nbsp;<\/p>\n<p>\u3059\u306a\u308f\u3061\u3001$y=2x\u00b2+4x+6$ \u306e\u9802\u70b9\u3068\u8ef8\u306f\u305d\u308c\u305e\u308c\u3001<\/p>\n<p style=\"text-align: center;\">$\u9802\u70b9$ $\\color{red}\uff08-1 , 4\uff09$<\/p>\n<p style=\"text-align: center;\">$\u8ef8$ $\\color{red}-1$<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"h2-3\">\u4e8c\u6b21\u95a2\u6570\u306e\u9802\u70b9\u3068\u8ef8\u306e\u6c42\u3081\u65b9\uff08\u516c\u5f0f\u5229\u7528ver\uff09<\/h2>\n<p>&nbsp;<\/p>\n<p><strong>\u7d9a\u3044\u3066\u306f\u3001\u516c\u5f0f\u3092\u5229\u7528\u3057\u3066\u4e8c\u6b21\u95a2\u6570\u306e\u9802\u70b9\u3068\u8ef8\u3092\u6c42\u3081\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>\u5b9f\u306f\u3001\u4e8c\u6b21\u95a2\u6570\u306e\u9802\u70b9\u3068\u8ef8\u3092\u6c42\u3081\u308b\u3060\u3051\u306a\u3089\u3001\u516c\u5f0f\u3092\u5229\u7528\u3057\u305f\u65b9\u304c\u65e9\u304f\u30fb\u6b63\u78ba\u306b\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u305c\u3072\u3053\u306e\u6a5f\u4f1a\u306b\u3001\u516c\u5f0f\u3068\u305d\u306e\u5229\u7528\u65b9\u6cd5\u3092\u899a\u3048\u3066\u3001\u30c6\u30b9\u30c8\u3084\u6a21\u8a66\u3067\u30ac\u30f3\u30ac\u30f3\u5229\u7528\u3057\u3061\u3083\u3063\u3066\u304f\u3060\u3055\u3044\uff01<\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u300b\u30b9\u30ad\u30c3\u30d7\uff1a<a href=\"https:\/\/teno-hira.com\/media\/?p=636#h2-4\">\u7df4\u7fd2\u554f\u984c\u3092\u89e3\u304d\u306b\u3044\u304f<\/a><\/strong><\/p>\n<p><strong>\u300b\u30ea\u30bf\u30fc\u30f3\uff1a<a href=\"https:\/\/teno-hira.com\/media\/?p=636#table-teniis\">\u76ee\u6b21\u306b\u623b\u308b<\/a><\/strong><\/p>\n<h3>\u4e8c\u6b21\u95a2\u6570\u306e\u516c\u5f0f\u3063\u3066\u306a\u3093\u3060\u3063\u3051\uff1f<\/h3>\n<p>&nbsp;<\/p>\n<div class=\"voice clearfix left n_bottom\">\n<div class=\"icon\">\n<p><img decoding=\"async\" data-src=\"https:\/\/teno-hira.com\/media\/wp-content\/uploads\/2020\/06\/nurseman_question.png\" class=\"lazyload\" \/><\/p>\n<div class=\"name\">\u304e\u3082\u3093\u541b<\/div>\n<\/div>\n<div class=\"text sc_balloon left white\">\u305d\u3082\u305d\u3082\u4e8c\u6b21\u95a2\u6570\uff08\u5e73\u65b9\u5b8c\u6210\uff09\u306b\u516c\u5f0f\u304c\u3042\u308b\u3093\u3067\u3059\u306d\uff01<\/div>\n<\/div>\n<div class=\"voice clearfix right n_bottom\">\n<div class=\"icon\">\n<p><img decoding=\"async\" data-src=\"https:\/\/teno-hira.com\/media\/wp-content\/uploads\/2020\/06\/3588888-768x768-1.jpg\" class=\"lazyload\" \/><\/p>\n<div class=\"name\">\u3066\u306e\u3072\u3089\u5148\u751f<\/div>\n<\/div>\n<div class=\"text sc_balloon right white\">\u5e73\u65b9\u5b8c\u6210\u306e\u516c\u5f0f\u3092\u4f7f\u3048\u3070\u3001\u5b9f\u6570\u3092\u4ee3\u5165\u3059\u308b\u3060\u3051\u3067\u3001\u305d\u306e\u4e8c\u6b21\u95a2\u6570\u306e\u9802\u70b9\u3068\u8ef8\u304c\u6c42\u3081\u3089\u308c\u308b\u3002<\/div>\n<\/div>\n<div class=\"voice clearfix right n_bottom\">\n<div class=\"icon\">\n<p><img decoding=\"async\" data-src=\"https:\/\/teno-hira.com\/media\/wp-content\/uploads\/2020\/06\/3588888-768x768-1.jpg\" class=\"lazyload\" \/><\/p>\n<div class=\"name\">\u3066\u306e\u3072\u3089\u5148\u751f<\/div>\n<\/div>\n<div class=\"text sc_balloon right white\">\u4e8c\u6b21\u95a2\u6570\u3092\u3044\u3061\u3044\u3061\u5e73\u65b9\u5b8c\u6210\u3059\u308b\u3088\u308a\u3082\u3001\u516c\u5f0f\u3092\u4f7f\u3063\u305f\u65b9\u304c\u305a\u3063\u3068\u697d\u306b\u8a08\u7b97\u3067\u304d\u308b\u3093\u3060\u3088\u3002<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<p>\u5b9f\u306f\u3001\u3059\u3079\u3066\u306e\u4e8c\u6b21\u95a2\u6570\u306f $y=ax\u00b2+bx+c$ \u306e\u6587\u5b57\u5f0f\u306b\u8868\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001$$y=2x\u00b2+4x+6$$ \u306f\u3001\u4e0a\u306e\u6587\u5b57\u5f0f\u306b$a=2,$ $b=4,$ $c=6$ \u3092\u4ee3\u5165\u3057\u305f\u3082\u306e\u3002\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3088\u306d\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u3064\u307e\u308a\u3001$y=ax\u00b2+bx+c$ \u3092\u6587\u5b57\u5f0f\u306e\u307e\u307e\u5e73\u65b9\u5b8c\u6210\u3057\u305f\u5f0f\uff08\u516c\u5f0f\uff09\u306b\u3001\u4e8c\u6b21\u95a2\u6570\u306e\u5b9f\u6570\u3092\u5f53\u3066\u306f\u3081\u308c\u3070\u3001\u8907\u96d1\u306a\u8a08\u7b97\u3092\u3057\u306a\u304f\u3066\u3082\u9802\u70b9\u3068\u8ef8\u304c\u6c42\u3081\u3089\u308c\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<div class=\"sc_designlist li fa_check blue\">\n<ul>\n<li><strong>\u5e73\u65b9\u5b8c\u6210\u306e\u516c\u5f0f<\/strong><\/li>\n<\/ul>\n<\/div>\n<div class=\"sc_frame_wrap solid custom\">\n<div class=\"sc_frame \" style=\"border-color: #e6f8ff; background-color: #e6f8ff; color: #333;\">\n<p>$y=ax\u00b2+bx+c$ \u3092\u5e73\u65b9\u5b8c\u6210\u3059\u308b\u3068<\/p>\n<p>$y=a\\left(x+\\dfrac{b}{2a}\\right)^2-\\dfrac{b\u00b2-4ac}{4a}$ \u3068\u306a\u308a\u3001<\/p>\n<p>\u3053\u306e\u3068\u304d $\\left(-\\dfrac{b}{2a},-\\dfrac{b\u00b2-4ac}{4a}\\right)$ \u304c\u9802\u70b9\u3068\u306a\u308b\u3002<\/p>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<h3>\u516c\u5f0f\u3067\u9802\u70b9\u3068\u8ef8\u3092\u6c42\u3081\u3066\u307f\u3088\u3046<\/h3>\n<p>\u3067\u306f\u65e9\u901f\u3001\u4e8c\u6b21\u95a2\u6570\u306e\u9802\u70b9\u3068\u8ef8\u3092\u3001\u516c\u5f0f\u3092\u4f7f\u3063\u3066\u6c42\u3081\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u4f7f\u7528\u3059\u308b\u554f\u984c\u306f\u5148\u307b\u3069\u3068\u540c\u3058\u304f<\/p>\n<p>$$\\Large{y=2x\u00b2+4x+6}$$<\/p>\n<p>&nbsp;<\/p>\n<p>\u554f\u984c\u306e\u5f0f\u3092 $y=ax\u00b2+bx+c$ \u306b\u5f53\u3066\u306f\u3081\u308b\u3068<\/p>\n<p style=\"text-align: center;\">$a=2,$ $b=4,$ $c=6\u30fb\u30fb\u30fb\u24d0$<\/p>\n<p>&nbsp;<\/p>\n<p>\u5e73\u65b9\u5b8c\u6210\u306e\u516c\u5f0f\u3088\u308a\u3001<\/p>\n<p>$$-\\dfrac{b}{2a}\u30fb\u30fb\u30fb\uff08x\u5ea7\u6a19\uff09$$<\/p>\n<p>$$-\\dfrac{b\u00b2-4ac}{4a}\u30fb\u30fb\u30fb\uff08y\u5ea7\u6a19\uff09$$<\/p>\n<p>&nbsp;<\/p>\n<p>$\u24d0$ \u3088\u308a\u3001$a,b,c$ \u306e\u5024\u3092\u305d\u308c\u305e\u308c\u4ee3\u5165\u3059\u308b\u3068<\/p>\n<p>$$-\\dfrac{4}{4}=-1\u30fb\u30fb\u30fb\uff08x\u5ea7\u6a19\uff09$$<\/p>\n<p>$$-\\dfrac{(4)\u00b2-4(2)(6)}{4(2)}=4\u30fb\u30fb\u30fb\uff08y\u5ea7\u6a19\uff09$$<\/p>\n<p>&nbsp;<\/p>\n<p>\u3059\u306a\u308f\u3061\u3001$y=2x\u00b2+4x+6$ \u306e\u9802\u70b9\u3068\u8ef8\u306f\u305d\u308c\u305e\u308c\u3001<\/p>\n<p style=\"text-align: center;\">$\u9802\u70b9$ $\\color{red}\uff08-1 , 4\uff09$<\/p>\n<p style=\"text-align: center;\">$\u8ef8$ $\\color{red}-1$<\/p>\n<p>&nbsp;<\/p>\n<div class=\"voice clearfix left n_bottom\">\n<div class=\"icon\">\n<p><img decoding=\"async\" data-src=\"https:\/\/teno-hira.com\/media\/wp-content\/uploads\/2020\/07\/nurseman_tehe.png\" class=\"lazyload\" \/><\/p>\n<div class=\"name\">\u304e\u3082\u3093\u541b<\/div>\n<\/div>\n<div class=\"text sc_balloon left white\">\u307b\u3093\u3068\u3060\uff01\u516c\u5f0f\u3092\u4f7f\u3063\u305f\u65b9\u304c\u8a08\u7b97\u304c\u30e9\u30af\uff01<\/div>\n<\/div>\n<div class=\"voice clearfix right n_bottom\">\n<div class=\"icon\">\n<p><img decoding=\"async\" data-src=\"https:\/\/teno-hira.com\/media\/wp-content\/uploads\/2020\/06\/3588888-768x768-1.jpg\" class=\"lazyload\" \/><\/p>\n<div class=\"name\">\u3066\u306e\u3072\u3089\u5148\u751f<\/div>\n<\/div>\n<div class=\"text sc_balloon right white\">\u305d\u3046\u306a\u3093\u3067\u3059\uff01\u8a08\u7b97\u3084\u624b\u9806\u304c\u5c11\u306a\u304f\u306a\u308b\u5206\u3001\u30df\u30b9\u3082\u6e1b\u308a\u307e\u3088\u3002<\/div>\n<\/div>\n<div class=\"voice clearfix right n_bottom\">\n<div class=\"icon\">\n<p><img decoding=\"async\" data-src=\"https:\/\/teno-hira.com\/media\/wp-content\/uploads\/2020\/06\/3588888-768x768-1.jpg\" class=\"lazyload\" \/><\/p>\n<div class=\"name\">\u3066\u306e\u3072\u3089\u5148\u751f<\/div>\n<\/div>\n<div class=\"text sc_balloon right white\">\u305c\u3072\u3053\u306e\u6a5f\u4f1a\u306b\u3001\u4e8c\u6b21\u95a2\u6570\uff08\u5e73\u65b9\u5b8c\u6210\uff09\u306e\u516c\u5f0f\u3092\u899a\u3048\u3066\u5e30\u3063\u3066\u304f\u3060\u3055\u3044\uff01<\/div>\n<\/div>\n<div><\/div>\n<div class=\"sc_designlist li fa_check blue\">\n<ul>\n<li><strong>\u5e73\u65b9\u5b8c\u6210\u306e\u516c\u5f0f<\/strong><\/li>\n<\/ul>\n<\/div>\n<div class=\"sc_frame_wrap solid custom\">\n<div class=\"sc_frame \" style=\"border-color: #e6f8ff; background-color: #e6f8ff; color: #333;\">\n<p>$y=ax\u00b2+bx+c$ \u3092\u5e73\u65b9\u5b8c\u6210\u3059\u308b\u3068<\/p>\n<p>$y=a\\left(x+\\dfrac{b}{2a}\\right)^2-\\dfrac{b\u00b2-4ac}{4a}$ \u3068\u306a\u308a\u3001<\/p>\n<p>\u3053\u306e\u3068\u304d $\\left(-\\dfrac{b}{2a},-\\dfrac{b\u00b2-4ac}{4a}\\right)$ \u304c\u9802\u70b9\u3068\u306a\u308b\u3002<\/p>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<h2 id=\"h2-4\">\u3010\u7df4\u7fd2\u554f\u984c\u3011\u4e8c\u6b21\u95a2\u6570\u306e\u9802\u70b9\u3068\u8ef8\u3092\u6c42\u3081\u3066\u307f\u3088\u3046<\/h2>\n<p>&nbsp;<\/p>\n<div class=\"sc_designlist li fa_check blue\">\n<ul>\n<li><strong>\u9802\u70b9\u3068\u8ef8\u3092\u6c42\u3081\u308b\u7df4\u7fd2\u554f\u984c<\/strong><\/li>\n<\/ul>\n<\/div>\n<div class=\"sc_frame_wrap solid custom\">\n<div class=\"sc_frame \" style=\"border-color: #e6f8ff; background-color: #e6f8ff; color: #333;\">\n<ul>\n<li>$y=x\u00b2+6x+5\u306e\u9802\u70b9\u3068\u8ef8\u3092\u6c42\u3081\u3088$<\/li>\n<li>$y=\\dfrac{1}{4}x\u00b2+x-1\u306e\u9802\u70b9\u3068\u8ef8\u3092\u6c42\u3081\u3088$<\/li>\n<li>$y=-4x\u00b2+x-1\u306e\u9802\u70b9\u3068\u8ef8\u3092\u6c42\u3081\u3088$<\/li>\n<li>$y=3x\u00b2+9\u306e\u9802\u70b9\u3068\u8ef8\u3092\u6c42\u3081\u3088$<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<p>\u4eca\u56de\u306e\u7df4\u7fd2\u554f\u984c\u306f\u5168\u90e8\u30674\u3064\u3002<\/p>\n<p>\u9ad8\u6821\u751f\u304c\u8a08\u7b97\u30df\u30b9\u3092\u3057\u3084\u3059\u3044\u300c\u5206\u6570\u3092\u542b\u3080\u554f\u984c\u300d\u3082\u7528\u610f\u3057\u305f\u306e\u3067\u3001\u305c\u3072\u30c1\u30e3\u30ec\u30f3\u30b8\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u5404\u554f\u984c\u306e\u7b54\u3048\u3068\u89e3\u8aac\u306f\u3001\u3053\u306e\u5148\u306b\u8a18\u8f09\u3057\u3066\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u300b\u30ea\u30bf\u30fc\u30f3\uff1a<a href=\"https:\/\/teno-hira.com\/media\/?p=636#table-teniis\">\u76ee\u6b21\u306b\u623b\u308b<\/a><\/strong><\/p>\n<h3>\u4e8c\u6b21\u95a2\u6570\u306e\u9802\u70b9\u3068\u8ef8\u3092\u6c42\u3081\u308b\u7df4\u7fd2\u554f\u984c\u2460<\/h3>\n<div class=\"sc_toggle_box\">\n<div class=\"sc_toggle_title\">\u554f\u984c\uff5c$y=x\u00b2+6x+5$<\/div>\n<div class=\"sc_toggle_content\">\u7b54\u3048\uff5c\u9802\u70b9\u306f$\uff08-3,-4\uff09$\u3001\u8ef8\u306f$-3$<\/div>\n<\/div>\n<h4>\u5e73\u65b9\u5b8c\u6210\u3092\u4f7f\u3063\u3066\u89e3\u304fver<\/h4>\n<p>&nbsp;<\/p>\n<p>$$\\Large{y=x\u00b2+6x+5}$$<\/p>\n<p>&nbsp;<\/p>\n<p>\u307e\u305a\u306f\u3001$x$ \u306e\u4fc2\u6570 $6$ \u306e\u534a\u5206\u306e $3$ \u306e\u5e73\u65b9 $(3)\u00b2$ \u3092\u52dd\u624b\u306b\u4f5c\u3063\u3066\u52a0\u3048\u3001\u52a0\u3048\u305f\u5206\u3092\u5f15\u304f\u3068<\/p>\n<p>$$=x\u00b2+6x+\\color{red}(3)\u00b2-(3)\u00b2\\color{black}+5$$<\/p>\n<p>&nbsp;<\/p>\n<p>\u3053\u306e\u6642\u3001$x\u00b2+6x+(3)\u00b2$ \u306b\u6ce8\u76ee\u3059\u308b\u3068\u3001$(x+3)\u00b2$ \u306b\u56e0\u6570\u5206\u89e3\u3067\u304d\u308b\u306e\u304c\u5206\u304b\u308b\u3002<\/p>\n<p>$$=\\color{red}x\u00b2+6x+(3)\u00b2\\color{black}-(3)\u00b2+5$$<\/p>\n<p>&nbsp;<\/p>\n<p>\u3088\u3063\u3066\u3001$x\u00b2+6x+(3)\u00b2$ \u3092\u3001\u56e0\u6570\u5206\u89e3\u3059\u308b\u3068<\/p>\n<p>$$=(x+3)\u00b2-(3)\u00b2+5$$<\/p>\n<p>$$=(x+3)\u00b2-4$$<\/p>\n<p>&nbsp;<\/p>\n<p>\u3088\u3063\u3066\u3001$\\color{red}\u9802\u70b9\uff08-3,-4\uff09$ $\\color{red}\u8ef8 -3$ \u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<h4>\u516c\u5f0f\u3092\u4f7f\u3063\u3066\u89e3\u304fver<\/h4>\n<p>&nbsp;<\/p>\n<p>$$\\Large{y=x\u00b2+6x+5}$$<\/p>\n<p style=\"text-align: center;\">$a=1,$ $b=6,$ $c=5$<\/p>\n<p>&nbsp;<\/p>\n<p>\u5e73\u65b9\u5b8c\u6210\u306e\u516c\u5f0f\u3088\u308a\u3001<\/p>\n<p>$$-\\dfrac{b}{2a}\u30fb\u30fb\u30fb\uff08x\u5ea7\u6a19\uff09$$<\/p>\n<p>$$-\\dfrac{b\u00b2-4ac}{4a}\u30fb\u30fb\u30fb\uff08y\u5ea7\u6a19\uff09$$<\/p>\n<p>&nbsp;<\/p>\n<p>$a,b,c$ \u306e\u5024\u3092\u305d\u308c\u305e\u308c\u4ee3\u5165\u3059\u308b\u3068<\/p>\n<p>$$-\\dfrac{6}{2(1)}=-3\u30fb\u30fb\u30fb\uff08x\u5ea7\u6a19\uff09$$<\/p>\n<p>$$-\\dfrac{(6)\u00b2-4(1)(5)}{4(1)}=-4\u30fb\u30fb\u30fb\uff08y\u5ea7\u6a19\uff09$$<\/p>\n<p>&nbsp;<\/p>\n<p>\u3088\u3063\u3066\u3001$\\color{red}\u9802\u70b9\uff08-3,-4\uff09$ $\\color{red}\u8ef8 -3$ \u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<h3>\u4e8c\u6b21\u95a2\u6570\u306e\u9802\u70b9\u3068\u8ef8\u3092\u6c42\u3081\u308b\u7df4\u7fd2\u554f\u984c\u2461<\/h3>\n<div class=\"sc_toggle_box\">\n<div class=\"sc_toggle_title\">\u554f\u984c\uff5c$y=\\dfrac{1}{4}x\u00b2+x-1$<\/div>\n<div class=\"sc_toggle_content\">\u7b54\u3048\uff5c\u9802\u70b9\u306f$\uff08-2,-2\uff09$\u3001\u8ef8\u306f$-2$<\/div>\n<\/div>\n<h4>\u5e73\u65b9\u5b8c\u6210\u3092\u4f7f\u3063\u3066\u89e3\u304fver<\/h4>\n<p>&nbsp;<\/p>\n<p>$$\\Large{y=\\dfrac{1}{4}x\u00b2+x-1}$$<\/p>\n<p>&nbsp;<\/p>\n<p>\u307e\u305a\u306f\u3001$x\u00b2$ \u306e\u4fc2\u6570 $\\dfrac{1}{4}$ \u3067\u3001$\\dfrac{1}{4}x\u00b2+x$ \u3092\u304f\u304f\u3063\u3066<\/p>\n<p>$$=\\color{red}\\dfrac{1}{4}(x\u00b2+4x)\\color{black}-1$$<\/p>\n<p>&nbsp;<\/p>\n<p>$x$ \u306e\u4fc2\u6570 $4$ \u306e\u534a\u5206\u306e $2$ \u306e\u5e73\u65b9 $(2)\u00b2$ \u3092\u52dd\u624b\u306b\u4f5c\u3063\u3066\u52a0\u3048\u3001\u52a0\u3048\u305f\u5206\u3092\u5f15\u304f\u3068<\/p>\n<p>$$=\\dfrac{1}{4}[x\u00b2+4x+\\color{red}(2)\u00b2-(2)\u00b2\\color{black}]-1$$<\/p>\n<p>&nbsp;<\/p>\n<p>\u3053\u306e\u6642\u3001$x\u00b2+4x+(2)\u00b2$ \u306b\u6ce8\u76ee\u3059\u308b\u3068\u3001$(x+2)\u00b2$ \u306b\u56e0\u6570\u5206\u89e3\u3067\u304d\u308b\u306e\u304c\u5206\u304b\u308b\u3002<\/p>\n<p>$$=\\dfrac{1}{4}[\\color{red}x\u00b2+4x+(2)\u00b2\\color{black}-(2)\u00b2]-1$$<\/p>\n<p>&nbsp;<\/p>\n<p>\u3088\u3063\u3066\u3001$x\u00b2+4x+(2)\u00b2$ \u3092\u3001\u56e0\u6570\u5206\u89e3\u3059\u308b\u3068<\/p>\n<p>$$=\\dfrac{1}{4}[\\color{red}(x+2)\u00b2\\color{black}-(2)\u00b2]-1$$<\/p>\n<p>&nbsp;<\/p>\n<p>\u6700\u5f8c\u306b\u3001\u4f59\u8a08\u306a $-(2)\u00b2$ \u3092\u30ab\u30c3\u30b3\u306e\u5916\u306b\u51fa\u3057\u3066<\/p>\n<p>$$=\\dfrac{1}{4}(x+2)\u00b2\\color{red}-1-1$$<\/p>\n<p>$$=\\dfrac{1}{4}(x+2)\u00b2-2$$<\/p>\n<p>&nbsp;<\/p>\n<p>\u3088\u3063\u3066\u3001$\\color{red}\u9802\u70b9\uff08-2,-2\uff09$ $\\color{red}\u8ef8 -2$ \u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<h4>\u516c\u5f0f\u3092\u4f7f\u3063\u3066\u89e3\u304fver<\/h4>\n<p>&nbsp;<\/p>\n<p>$$\\Large{y=\\dfrac{1}{4}x\u00b2+x-1}$$<\/p>\n<p style=\"text-align: center;\">$a=\\dfrac{1}{4},$ $b=1,$ $-1$<\/p>\n<p>&nbsp;<\/p>\n<p>\u5e73\u65b9\u5b8c\u6210\u306e\u516c\u5f0f\u3088\u308a\u3001<\/p>\n<p>$$-\\dfrac{b}{2a}\u30fb\u30fb\u30fb\uff08x\u5ea7\u6a19\uff09$$<\/p>\n<p>$$-\\dfrac{b\u00b2-4ac}{4a}\u30fb\u30fb\u30fb\uff08y\u5ea7\u6a19\uff09$$<\/p>\n<p>&nbsp;<\/p>\n<p>$a,b,c$ \u306e\u5024\u3092\u305d\u308c\u305e\u308c\u4ee3\u5165\u3059\u308b\u3068<\/p>\n<p>$$-\\dfrac{1}{2\\left(\\dfrac{1}{4}\\right)}=-2\u30fb\u30fb\u30fb\uff08x\u5ea7\u6a19\uff09$$<\/p>\n<p>$$-\\dfrac{(1)\u00b2-4\\left(\\dfrac{1}{4}\\right)(-1)}{4\\left(\\dfrac{1}{4}\\right)}=-2\u30fb\u30fb\u30fb\uff08y\u5ea7\u6a19\uff09$$<\/p>\n<p>&nbsp;<\/p>\n<p>\u3088\u3063\u3066\u3001$\\color{red}\u9802\u70b9\uff08-2,-2\uff09$ $\\color{red}\u8ef8 -2$ \u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<h3>\u4e8c\u6b21\u95a2\u6570\u306e\u9802\u70b9\u3068\u8ef8\u3092\u6c42\u3081\u308b\u7df4\u7fd2\u554f\u984c\u2462<\/h3>\n<div class=\"sc_toggle_box\">\n<div class=\"sc_toggle_title\">\u554f\u984c\uff5c$y=-4x\u00b2+x-1$<\/div>\n<div class=\"sc_toggle_content\">\u7b54\u3048\uff5c\u9802\u70b9\u306f$\\left(\\dfrac{1}{8},-\\dfrac{15}{16}\\right)$\u3001\u8ef8\u306f$\\dfrac{1}{8}$<\/div>\n<\/div>\n<h4>\u5e73\u65b9\u5b8c\u6210\u3092\u4f7f\u3063\u3066\u89e3\u304fver<\/h4>\n<p>&nbsp;<\/p>\n<p>$$\\Large{y=-4x\u00b2+x-1}$$<\/p>\n<p>&nbsp;<\/p>\n<p>\u307e\u305a\u306f\u3001$x\u00b2$ \u306e\u4fc2\u6570 $-4$ \u3067\u3001$-4x\u00b2+x$ \u3092\u304f\u304f\u3063\u3066<\/p>\n<p>$$=\\color{red}-4\\left(x\u00b2-\\dfrac{1}{4}x\\right)\\color{black}-1$$<\/p>\n<p>&nbsp;<\/p>\n<p>$x$ \u306e\u4fc2\u6570 $-\\dfrac{1}{4}$ \u306e\u534a\u5206\u306e $-\\dfrac{1}{8}$ \u306e\u5e73\u65b9 $\\left(-\\dfrac{1}{8}\\right)^2$ \u3092\u52dd\u624b\u306b\u4f5c\u3063\u3066\u52a0\u3048\u3001\u52a0\u3048\u305f\u5206\u3092\u5f15\u304f\u3068<\/p>\n<p>$$=-4\\left[x\u00b2-\\dfrac{1}{4}x+\\color{red}\\left(-\\dfrac{1}{8}\\right)^2-\\left(-\\dfrac{1}{8}\\right)^2\\color{black}\\right]-1$$<\/p>\n<p>&nbsp;<\/p>\n<p>\u3053\u306e\u6642\u3001$x\u00b2-\\dfrac{1}{4}x+\\left(-\\dfrac{1}{8}\\right)^2$ \u306b\u6ce8\u76ee\u3059\u308b\u3068\u3001$\\left(x-\\dfrac{1}{8}\\right)^2$ \u306b\u56e0\u6570\u5206\u89e3\u3067\u304d\u308b\u306e\u304c\u5206\u304b\u308b\u3002<\/p>\n<p>$$=-4\\left[\\color{red}x\u00b2-\\dfrac{1}{4}x+\\left(-\\dfrac{1}{8}\\right)^2\\color{black}-\\left(-\\dfrac{1}{8}\\right)^2\\right]-1$$<\/p>\n<p>&nbsp;<\/p>\n<p>\u3088\u3063\u3066\u3001$x\u00b2-\\dfrac{1}{4}x+\\left(-\\dfrac{1}{8}\\right)^2$ \u3092\u3001\u56e0\u6570\u5206\u89e3\u3059\u308b\u3068<\/p>\n<p>$$=-4\\left[\\color{red}\\left(x-\\dfrac{1}{8}\\right)^2\\color{black}-\\left(-\\dfrac{1}{8}\\right)^2\\right]-1$$<\/p>\n<p>&nbsp;<\/p>\n<p>\u6700\u5f8c\u306b\u3001\u4f59\u8a08\u306a $-\\left(-\\dfrac{1}{8}\\right)^2$ \u3092\u30ab\u30c3\u30b3\u306e\u5916\u306b\u51fa\u3057\u3066<\/p>\n<p>$$=-4\\left(x-\\dfrac{1}{8}\\right)^2\\color{red}+4\\left(-\\dfrac{1}{8}\\right)^2-1$$<\/p>\n<p>$$=-4\\left(x-\\dfrac{1}{8}\\right)^2\\color{red}+\\left(\\dfrac{1}{16}\\right)-1$$<\/p>\n<p>$$=-4\\left(x-\\dfrac{1}{8}\\right)^2-\\dfrac{15}{16}$$<\/p>\n<p>&nbsp;<\/p>\n<p>\u3088\u3063\u3066\u3001$\\color{red}\u9802\u70b9\\left(\\dfrac{1}{8},-\\dfrac{15}{16}\\right)$ $\\color{red}\u8ef8 \\dfrac{1}{8}$ \u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<h4>\u516c\u5f0f\u3092\u4f7f\u3063\u3066\u89e3\u304fver<\/h4>\n<p>&nbsp;<\/p>\n<p>$$\\Large{y=-4x\u00b2+x-1}$$<\/p>\n<p style=\"text-align: center;\">$a=-4,$ $b=1,$ $-1$<\/p>\n<p>&nbsp;<\/p>\n<p>\u5e73\u65b9\u5b8c\u6210\u306e\u516c\u5f0f\u3088\u308a\u3001<\/p>\n<p>$$-\\dfrac{b}{2a}\u30fb\u30fb\u30fb\uff08x\u5ea7\u6a19\uff09$$<\/p>\n<p>$$-\\dfrac{b\u00b2-4ac}{4a}\u30fb\u30fb\u30fb\uff08y\u5ea7\u6a19\uff09$$<\/p>\n<p>&nbsp;<\/p>\n<p>$a,b,c$ \u306e\u5024\u3092\u305d\u308c\u305e\u308c\u4ee3\u5165\u3059\u308b\u3068<\/p>\n<p>$$-\\dfrac{1}{2(-4)}=\\dfrac{1}{8}\u30fb\u30fb\u30fb\uff08x\u5ea7\u6a19\uff09$$<\/p>\n<p>$$-\\dfrac{(1)\u00b2-4(-4)(-1)}{4(-4)}=-\\dfrac{15}{16}\u30fb\u30fb\u30fb\uff08y\u5ea7\u6a19\uff09$$<\/p>\n<p>&nbsp;<\/p>\n<p>\u3088\u3063\u3066\u3001$\\color{red}\u9802\u70b9\\left(\\dfrac{1}{8},-\\dfrac{15}{16}\\right)$ $\\color{red}\u8ef8 \\dfrac{1}{8}$ \u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<h3>\u4e8c\u6b21\u95a2\u6570\u306e\u9802\u70b9\u3068\u8ef8\u3092\u6c42\u3081\u308b\u7df4\u7fd2\u554f\u984c\u2463<\/h3>\n<div class=\"sc_toggle_box\">\n<div class=\"sc_toggle_title\">\u554f\u984c\uff5c$y=3x\u00b2+9$<\/div>\n<div class=\"sc_toggle_content\">\u7b54\u3048\uff5c\u9802\u70b9\u306f$\uff080,9\uff09$\u3001\u8ef8\u306f$0$<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<p>\u3053\u306e\u3088\u3046\u306a\u554f\u984c\u3067\u306f\u3001\u5e73\u65b9\u5b8c\u6210\u3057\u305f\u308a\u516c\u5f0f\u3092\u5229\u7528\u3057\u305f\u308a\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>$y=3x\u00b2+9$ \u3092\u30b0\u30e9\u30d5\u306b\u3059\u308b\u3068<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" data-src=\"https:\/\/teno-hira.com\/media\/wp-content\/uploads\/2020\/07\/tyouenn.png\" alt=\"\" width=\"782\" height=\"440\" class=\"aligncenter size-full wp-image-866 lazyload\" data-srcset=\"https:\/\/teno-hira.com\/media\/wp-content\/uploads\/2020\/07\/tyouenn.png 782w, https:\/\/teno-hira.com\/media\/wp-content\/uploads\/2020\/07\/tyouenn-768x432.png 768w\" data-sizes=\"auto, (max-width: 782px) 100vw, 782px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>\u3088\u3063\u3066\u3001$\\color{red}\u9802\u70b9\uff080,9\uff09$ $\\color{red}\u8ef8 0$ \u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<div class=\"voice clearfix right n_bottom\">\n<div class=\"icon\">\n<p><img decoding=\"async\" data-src=\"https:\/\/teno-hira.com\/media\/wp-content\/uploads\/2020\/06\/3588888-768x768-1.jpg\" class=\"lazyload\" \/><\/p>\n<div class=\"name\">\u3066\u306e\u3072\u3089\u5148\u751f<\/div>\n<\/div>\n<div class=\"text sc_balloon right white\">\u4e8c\u6b21\u95a2\u6570\u306e\u554f\u984c\u3092\u89e3\u304f\u3068\u304d\u306f\u3001\u6570\u5f0f\u3092\u898b\u308b\u3068\u540c\u6642\u306b\u300c\u30b0\u30e9\u30d5\u300d\u3082\u30a4\u30e1\u30fc\u30b8\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308d\u3046\uff01<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<p><strong>\u4ee5\u4e0a\u3067\u3001\u300c\u4e8c\u6b21\u95a2\u6570\u306e\u9802\u70b9\u3068\u8ef8\u306e\u6c42\u3081\u65b9\u300d\u306e\u6388\u696d\u306f\u7d42\u4e86\uff01<\/strong><\/p>\n<p>\u4e0d\u660e\u306a\u70b9\u304c\u3042\u3063\u305f\u3089\u300c\u308f\u304b\u3089\u306a\u3044\u307e\u307e\u300d\u306b\u305b\u305a\u3001\u3082\u3046\u4e00\u5ea6\u6388\u696d\u3092\u8aad\u307f\u8fd4\u305d\u3046\uff01<\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u300b\u30ea\u30bf\u30fc\u30f3\uff1a<a href=\"https:\/\/teno-hira.com\/media\/?p=636#table-teniis\">\u76ee\u6b21\u306b\u623b\u308b<\/a><\/strong><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6570\u5b66\u304c\u82e6\u624b\u306a\u9ad8\u68211\u5e74\u751f\u300c\u5b66\u6821\u306e\u5bbf\u984c\u3067\u4e8c\u6b21\u95a2\u6570\u306e\u554f\u984c\u3092\u51fa\u3055\u308c\u305f\u3051\u3069\u3001\u305d\u3082\u305d\u3082\u8ef8\u3068\u304b\u9802\u70b9\u3063\u3066\u3069\u3046\u3084\u3063\u3066\u6c42\u3081\u308b\u3093\u3060\u3063\u3051\uff1f\u6570\u5b66\u304c\u82e6\u624b\u306a\u50d5\u3067\u3082\u3067\u304d\u308b\u65b9\u6cd5\u3084\u3001\u516c\u5f0f\u304c\u3042\u308c\u3070\u6559\u3048\u3066\uff01\u300d &nbsp; \u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u3053\u3093\u306a\u7591\u554f\u3092\u89e3\u6c7a\u3057\u3066\u3044\u307e\u3059\u3002 &nbsp;\u2026<\/p>\n","protected":false},"author":15,"featured_media":826,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[42],"tags":[],"class_list":["post-636","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-42"],"_links":{"self":[{"href":"https:\/\/teno-hira.com\/media\/index.php?rest_route=\/wp\/v2\/posts\/636","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/teno-hira.com\/media\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/teno-hira.com\/media\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/teno-hira.com\/media\/index.php?rest_route=\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/teno-hira.com\/media\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=636"}],"version-history":[{"count":55,"href":"https:\/\/teno-hira.com\/media\/index.php?rest_route=\/wp\/v2\/posts\/636\/revisions"}],"predecessor-version":[{"id":1966,"href":"https:\/\/teno-hira.com\/media\/index.php?rest_route=\/wp\/v2\/posts\/636\/revisions\/1966"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/teno-hira.com\/media\/index.php?rest_route=\/wp\/v2\/media\/826"}],"wp:attachment":[{"href":"https:\/\/teno-hira.com\/media\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=636"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/teno-hira.com\/media\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=636"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/teno-hira.com\/media\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=636"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}