{"id":370,"date":"2023-07-04T08:50:30","date_gmt":"2023-07-04T08:50:30","guid":{"rendered":"https:\/\/mathority.org\/ja\/%e5%a4%9a%e9%a0%85%e5%bc%8f%e9%96%a2%e6%95%b0-2\/"},"modified":"2023-07-04T08:50:30","modified_gmt":"2023-07-04T08:50:30","slug":"%e5%a4%9a%e9%a0%85%e5%bc%8f%e9%96%a2%e6%95%b0-2","status":"publish","type":"post","link":"https:\/\/mathority.org\/ja\/%e5%a4%9a%e9%a0%85%e5%bc%8f%e9%96%a2%e6%95%b0-2\/","title":{"rendered":"\u591a\u9805\u5f0f\u95a2\u6570"},"content":{"rendered":"<p>\u3053\u3053\u3067\u306f\u3001\u591a\u9805\u5f0f\u95a2\u6570\u3068\u306f\u4f55\u304b\u3001\u304a\u3088\u3073\u3059\u3079\u3066\u306e\u7a2e\u985e\u306e\u591a\u9805\u5f0f\u95a2\u6570\u3068\u306f\u4f55\u304b\u3092\u8aac\u660e\u3057\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u591a\u9805\u5f0f\u95a2\u6570\u306e\u6027\u8cea\u306b\u3064\u3044\u3066\u3082\u8aac\u660e\u3057\u307e\u3059\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%c2%bfque-es-una-funcion-polinomica\"><\/span>\u591a\u9805\u5f0f\u95a2\u6570\u3068\u306f\u4f55\u3067\u3059\u304b? <span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div style=\"background:linear-gradient(to bottom, #FFFFFF 0%, #FFE0B2 100%); padding-top: 23px; padding-bottom: 0.5px; padding-right: 30px; padding-left: 30px; border: 2px dashed #FF9B28; border-radius:20px;\">\n<p style=\"text-align:left\"><strong>\u591a\u9805\u5f0f\u95a2\u6570\u306f\u3001\u305d\u306e\u4ee3\u6570\u5f0f\u304c\u591a\u9805\u5f0f\u3067\u3042\u308b\u95a2\u6570\u3067\u3059<\/strong>\u3002\u3064\u307e\u308a\u3001\u591a\u9805\u5f0f\u95a2\u6570\u306f\u3001\u6b21\u6570\u306e\u7570\u306a\u308b\u6709\u9650\u6570\u306e\u9805\u306e\u52a0\u7b97\u307e\u305f\u306f\u6e1b\u7b97\u306b\u3088\u3063\u3066\u5b9a\u7fa9\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/div>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001\u591a\u9805\u5f0f\u95a2\u6570\u306f\u6b21\u306e\u5f0f\u3067\u6570\u5b66\u7684\u306b\u8a18\u8ff0\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-3094a01ff9b10acb7c44349cda083025_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"f(x)=a_0+a_1x+a_2x^2+a_3x^3+\\dots+a_nx^n\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"338\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p>\u4e00\u65b9\u3001\u591a\u9805\u5f0f\u95a2\u6570\u306f\u6b21\u306e\u5f0f\u3092\u4f7f\u7528\u3057\u3066\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-62b7d79fa4f8729d8b5988cfafe766b1_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle f(x)=\\sum_{k=0}^{n}a_k\\cdot x^k\" title=\"Rendered by QuickLaTeX.com\" height=\"50\" width=\"134\" style=\"vertical-align: -22px;\"><\/p>\n<\/p>\n<p>\u6761\u4ef6\u306f\u3069\u3053\u306b\u3042\u308a\u307e\u3059\u304b<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-eb74c1c8b6fc6cb7def31be6478a4ac5_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"a_k\" title=\"Rendered by QuickLaTeX.com\" height=\"11\" width=\"16\" style=\"vertical-align: -3px;\"><\/p>\n<p>\u305d\u3057\u3066<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-81e025d46b78edcab0363d17fe2192ae_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x^k\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"17\" style=\"vertical-align: 0px;\"><\/p>\n<p>\u306f\u305d\u308c\u305e\u308c\u3001\u591a\u9805\u5f0f\u95a2\u6570\u3092\u5f62\u6210\u3059\u308b\u5404\u5358\u9805\u5f0f\u306e\u4fc2\u6570\u3068\u5909\u6570\u3067\u3059\u3002<\/p>\n<p>\u7528\u8a9e<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-9de935842ec9a1d8a889c9cdf3a65d52_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"a_nx^n\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"37\" style=\"vertical-align: -3px;\"><\/p>\n<p>\u306f\u4e3b\u9805\u3068\u547c\u3070\u308c\u3001\u95a2\u6570\u306e\u6700\u9ad8\u6b21\u6570\u306e\u5358\u9805\u5f0f\u3067\u3042\u308b\u305f\u3081\u3001\u591a\u9805\u5f0f\u95a2\u6570\u306e\u6b21\u6570\u3092\u793a\u3057\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u6700\u5927\u5024\u306e\u6307\u6570\u304c\u591a\u9805\u5f0f\u95a2\u6570\u306e\u6b21\u6570\u3092\u793a\u3059\u6307\u6570\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u4ee5\u4e0b\u3067\u591a\u9805\u5f0f\u95a2\u6570\u306e\u7279\u5fb4\u3092\u3055\u3089\u306b\u898b\u3066\u3044\u304d\u307e\u3059\u304c\u3001\u591a\u9805\u5f0f\u95a2\u6570\u306e\u5b9a\u7fa9\u57df\u306f\u3059\u3079\u3066\u5b9f\u6570\u3067\u3059\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"tipos-de-funciones-polinomicas\"><\/span>\u591a\u9805\u5f0f\u95a2\u6570\u306e\u7a2e\u985e<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u591a\u9805\u5f0f\u95a2\u6570\u306e\u5b9a\u7fa9\u3092\u8003\u616e\u3057\u3066\u3001\u3059\u3079\u3066\u306e\u7a2e\u985e\u306e\u591a\u9805\u5f0f\u95a2\u6570\u304c\u3069\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3042\u308b\u304b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"funcion-constante\"><\/span>\u5b9a\u6570\u95a2\u6570<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>\u5b9a\u6570\u95a2\u6570\u306f<\/strong>0\u6b21\u306e\u591a\u9805\u5f0f\u95a2\u6570\u306a\u306e\u3067\u3001\u72ec\u7acb\u5909\u6570(x)\u306e\u3069\u306e\u5024\u306b\u5bfe\u3057\u3066\u3082\u5e38\u306b\u540c\u3058\u30a4\u30e1\u30fc\u30b8\u3092\u3068\u308b\u95a2\u6570\u306e\u4e00\u7a2e\u3067\u3059\u3002<\/p>\n<p>\u5b9a\u6570\u95a2\u6570\u306e\u4e00\u822c\u5f0f\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-252f9958e223f77bf50cb3b92a7c3e35_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"f(x)=k\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"67\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p>\u305f\u3068\u3048\u3070\u3001\u6b21\u306e 3 \u3064\u306e\u95a2\u6570\u306f\u5b9a\u6570\u307e\u305f\u306f\u6b21\u6570 0 \u306e\u591a\u9805\u5f0f\u95a2\u6570\u3067\u3059\u3002<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-dfecee0a7025cfa700232991aca9831c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"f(x)=5 \\qquad f(x)=2 \\qquad f(x)=-3\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"286\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p>\u5b9a\u6570\u95a2\u6570\u306e\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u8868\u73fe\u306f\u3001\u5b9a\u6570\u306b\u7b49\u3057\u3044\u5024\u3092\u6301\u3064\u6c34\u5e73\u7dda (X \u8ef8\u306b\u5e73\u884c) \u3067\u3059\u3002 <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/fonctions-constantes.webp\" alt=\"\" class=\"wp-image-475\" width=\"336\" height=\"341\" srcset=\"\" sizes=\"auto, \"><\/figure>\n<\/div>\n<p>\u3053\u306e\u30bf\u30a4\u30d7\u306e\u95a2\u6570\u306b\u95a2\u3059\u308b\u305d\u306e\u4ed6\u306e\u6a5f\u80fd\u306b\u3064\u3044\u3066\u306f\u3001\u6b21\u306e\u30ea\u30f3\u30af\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<p> <span style=\"color:#ff951b\">\u27a4<\/span><strong>\u53c2\u7167:<\/strong><span style=\"text-decoration: underline;\"><a href=\"https:\/\/mathority.org\/ja\/\u5b9a\u6570\u95a2\u6570\/\">\u5b9a\u6570\u95a2\u6570\u306e\u7279\u6027<\/a><\/span><\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"funcion-lineal\"><\/span>\u4e00\u6b21\u95a2\u6570<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>\u7dda\u5f62\u95a2\u6570 \u306f<\/strong>\u3001\u30a2\u30d5\u30a3\u30f3\u95a2\u6570\u3068\u3082\u547c\u3070\u308c\u3001\u4e00\u6b21\u591a\u9805\u5f0f\u95a2\u6570\u3067\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u3053\u306e\u30bf\u30a4\u30d7\u306e\u591a\u9805\u5f0f\u95a2\u6570\u306f\u3001\u7dda\u5f62\u9805\u3068\u72ec\u7acb\u9805\u3067\u306e\u307f\u69cb\u6210\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-d1732952e15a6b2d8b3a238c55238db2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"f(x)=mx+n\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"117\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p>\u91d1<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-6b41df788161942c6f98604d37de8098_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"m\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"15\" style=\"vertical-align: 0px;\"><\/p>\n<p>\u306f\u7dda\u306e\u50be\u304d\u3067\u3042\u308a\u3001<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-b170995d512c659d8668b4e42e1fef6b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"n\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"11\" style=\"vertical-align: 0px;\"><\/p>\n<p>\u306f y \u5207\u7247\u3001\u3064\u307e\u308a\u95a2\u6570\u304c Y \u8ef8\u3068\u4ea4\u5dee\u3059\u308b\u5834\u6240\u3067\u3059\u3002<\/p>\n<p>\u7dda\u5f62\u95a2\u6570\u307e\u305f\u306f 1 \u6b21\u591a\u9805\u5f0f\u95a2\u6570\u306e\u4f8b:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-86aa79e6005b24678d9a3d85eb81e944_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"f(x)=4x+3\\qquad f(x)=-5x\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"234\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p>\u95a2\u6570\u306e\u9805\u306b \u304c\u3042\u308b\u304b\u3069\u3046\u304b\u306b\u5fdc\u3058\u3066\u3001\u7dda\u5f62\u95a2\u6570\u3068\u30a2\u30d5\u30a3\u30f3\u95a2\u6570\u3092\u533a\u5225\u3059\u308b\u4eba\u3082\u3044\u307e\u3059\u3002<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-b170995d512c659d8668b4e42e1fef6b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"n\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"11\" style=\"vertical-align: 0px;\"><\/p>\n<p>\u5207\u7247\u306e\u3042\u308b\u30a2\u30d5\u30a3\u30f3\u95a2\u6570\u3068\u5207\u7247\u306e\u306a\u3044\u7dda\u5f62\u95a2\u6570\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u3002<\/p>\n<p>\u4e00\u6b21\u95a2\u6570\u306e\u30b0\u30e9\u30d5\u8868\u73fe\u306f\u5e38\u306b\u76f4\u7dda\u3067\u3042\u308a\u3001\u305d\u306e\u50be\u304d\u306e\u7a0b\u5ea6\u306f\u95a2\u6570\u306e\u50be\u304d\u306e\u5024\u306b\u4f9d\u5b58\u3057\u307e\u3059\u3002<\/p>\n<p>\u4ee5\u4e0b\u306b\u3001\u4e00\u6b21\u591a\u9805\u5f0f\u95a2\u6570\u3092\u30b0\u30e9\u30d5\u3067\u793a\u3057\u307e\u3059\u3002 <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-9653f127e32459ed8310862cccdea63b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"f(x)=2x-1.\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"112\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/exercices-resolus-pour-representer-graphiquement-une-fonction-lineaire-ou-affine.webp\" alt=\"\" class=\"wp-image-106\" width=\"289\" height=\"334\" srcset=\"\" sizes=\"auto, \"><\/figure>\n<\/div>\n<p>\u305f\u3060\u3057\u3001\u4e00\u6b21\u95a2\u6570\u3092\u30b0\u30e9\u30d5\u5316\u3059\u308b\u306b\u306f\u3001\u3044\u304f\u3064\u304b\u306e\u6982\u5ff5\u306b\u3064\u3044\u3066\u7406\u89e3\u3057\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u6b21\u306e\u30ea\u30f3\u30af\u3067\u306f\u3001\u3053\u306e\u30bf\u30a4\u30d7\u306e\u591a\u9805\u5f0f\u95a2\u6570\u3092\u30b0\u30e9\u30d5\u5316\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u6bb5\u968e\u7684\u306b\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p> <span style=\"color:#ff951b\">\u27a4<\/span><strong>\u53c2\u7167:<\/strong> <span style=\"text-decoration: underline;\"><a href=\"https:\/\/mathority.org\/ja\/\u7dda\u5f62\u95a2\u6570\u3068\u30a2\u30d5\u30a3\u30f3\u95a2\u6570\/\">\u4e00\u6b21\u95a2\u6570\u306e\u30b0\u30e9\u30d5\u8868\u793a<\/a><\/span><\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"funcion-cuadratica\"><\/span>\u4e8c\u6b21\u95a2\u6570<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>\u4e8c\u6b21\u95a2\u6570<\/strong>\u306f 2 \u6b21\u306e\u591a\u9805\u5f0f\u95a2\u6570\u3001\u3064\u307e\u308a\u9ad8\u6b21\u9805\u304c 2 \u6b21\u306e\u95a2\u6570\u3067\u3059\u3002<\/p>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001\u4e8c\u6b21\u95a2\u6570\u306e\u516c\u5f0f\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-576d742ea12f780a76fa5809f5112086_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"f(x)=ax^2+bx+c\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"154\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p>\u91d1<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-0dfe37f98696a04358a5783f12ff4d6d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"ax^2\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"26\" style=\"vertical-align: 0px;\"><\/p>\n<p>\u306f\u4e8c\u6b21\u9805\u3001<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-e925448cc849aa310b3d4a7b77594e4b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"bx\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"18\" style=\"vertical-align: 0px;\"><\/p>\n<p>\u7dda\u5f62\u9805\u3068<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-41a04eeea923a1a0c28094a8a4680525_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"c\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"8\" style=\"vertical-align: 0px;\"><\/p>\n<p>\u591a\u9805\u5f0f\u95a2\u6570\u306e\u72ec\u7acb\u9805\u3002<\/p>\n<p>\u4e8c\u6b21\u95a2\u6570\u307e\u305f\u306f\u4e8c\u6b21\u591a\u9805\u5f0f\u95a2\u6570\u306e\u4f8b:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-d48b64c6411e81355f36c39384ae2241_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"f(x)=5x^2+2x-1\\qquad f(x)=-2x^2+x+7\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"353\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p>\u4e8c\u6b21\u95a2\u6570\u306e\u30b0\u30e9\u30d5\u306f\u5e38\u306b\u653e\u7269\u7dda\u3067\u3042\u308a\u3001\u305d\u306e\u5f62\u72b6\u306f\u5148\u982d\u306e\u4fc2\u6570\u306e\u7b26\u53f7\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-4fad90838c7fa310bdbea2364787ced6_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"a:\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"18\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<ul>\n<li>\u4fc2\u6570\u304c\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-5c53d6ebabdbcfa4e107550ea60b1b19_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"a\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"9\" style=\"vertical-align: 0px;\"><\/p>\n<p>\u304c\u6b63\u306e\u5834\u5408\u3001\u4e8c\u6b21\u95a2\u6570\u306f<strong>\u51f8\u306b<\/strong>\u306a\u308a\u307e\u3059 (\u6b21\u306e\u3088\u3046\u306a\u5f62\u72b6\u306b\u306a\u308a\u307e\u3059)<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-f5ebc563dbe58138d1de6b7fe99e8d31_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\bm{\\cup}\" title=\"Rendered by QuickLaTeX.com\" height=\"11\" width=\"11\" style=\"vertical-align: 0px;\"><\/p>\n<p> \uff09\u3002<\/li>\n<li>\u4ee3\u308f\u308a\u306b\u3001\u4fc2\u6570\u304c\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-5c53d6ebabdbcfa4e107550ea60b1b19_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"a\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"9\" style=\"vertical-align: 0px;\"><\/p>\n<p>\u304c\u8ca0\u306e\u5834\u5408\u3001\u4e8c\u6b21\u95a2\u6570\u306f<strong>\u51f9\u578b\u306b<\/strong>\u306a\u308a\u307e\u3059 (\u6b21\u306e\u3088\u3046\u306a\u5f62\u72b6\u306b\u306a\u308a\u307e\u3059)<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-dccbfcebef91876585ebd365457c3d24_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\bm{\\cap}\" title=\"Rendered by QuickLaTeX.com\" height=\"11\" width=\"11\" style=\"vertical-align: 0px;\"><\/p>\n<p> \uff09\u3002 <\/li>\n<\/ul>\n<div class=\"wp-block-columns is-layout-flex wp-container-147\">\n<div class=\"wp-block-column is-layout-flow\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/fonction-quadratique-ou-parabole-convexe.webp\" alt=\"\" class=\"wp-image-132\" width=\"254\" height=\"259\" srcset=\"\" sizes=\"auto, \"><\/figure>\n<\/div>\n<\/div>\n<div class=\"wp-block-column is-layout-flow\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/fonction-quadratique-ou-parabole-concave.webp\" alt=\"\" class=\"wp-image-133\" width=\"255\" height=\"260\" srcset=\"\" sizes=\"auto, \"><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<p>\u3057\u305f\u304c\u3063\u3066\u30012 \u6b21\u591a\u9805\u5f0f\u95a2\u6570\u306e\u4e3b\u4fc2\u6570\u306e\u7b26\u53f7\u3092\u4f7f\u7528\u3057\u3066\u3001\u305d\u306e\u30b0\u30e9\u30d5\u304c\u53d6\u308b\u5f62\u72b6\u3092\u77e5\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u304c\u3001\u305d\u306e\u6b63\u78ba\u306a\u30b0\u30e9\u30d5\u8868\u73fe\u3092\u4f5c\u6210\u3059\u308b\u306b\u306f\u3001\u7279\u5b9a\u306e\u624b\u9806\u306b\u5f93\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u624b\u9806\u306f\u6b21\u306e\u30ea\u30f3\u30af\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<p> <span style=\"color:#ff951b\">\u27a4<\/span><strong>\u53c2\u7167:<\/strong><span style=\"text-decoration: underline;\"><a href=\"https:\/\/mathority.org\/ja\/\u4e8c\u6b21\u653e\u7269\u7dda\u95a2\u6570\/\">2 \u6b21\u95a2\u6570\u306e\u30b0\u30e9\u30d5\u8868\u793a<\/a><\/span><\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"funcion-cubica\"><\/span>3\u6b21\u95a2\u6570<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>3 \u6b21<strong>\u95a2\u6570\u306f<\/strong>3 \u6b21\u306e\u591a\u9805\u5f0f\u95a2\u6570\u3067\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u3053\u306e\u30bf\u30a4\u30d7\u306e\u591a\u9805\u5f0f\u95a2\u6570\u306f\u4ee3\u6570\u7684\u306b\u6b21\u306e\u3088\u3046\u306b\u8868\u73fe\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-fac2bfbcd242b3a3d6155d4fac9c21d3_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"f(x)=ax^3+bx^2+cx+d\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"204\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p> 3 \u6b21\u95a2\u6570\u307e\u305f\u306f 3 \u6b21\u591a\u9805\u5f0f\u95a2\u6570\u306e\u4f8b:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-f7a410faffb05be5358ae725727fe7ae_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"f(x)=x^3+4x^2+5x-1\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"195\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-e8d32af2cf007cdb99bf68a94b3312e2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"f(x)=2x^3-3x^2+9\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"164\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p> 3 \u6b21\u95a2\u6570\u306e\u30b0\u30e9\u30d5\u8868\u73fe\u306f 3 \u6b21\u66f2\u7dda\u306b\u5bfe\u5fdc\u3057\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u3053\u306e\u7a2e\u306e\u95a2\u6570\u3092\u30b0\u30e9\u30d5\u3067\u8868\u73fe\u3059\u308b\u306b\u306f\u3001\u8907\u96d1\u306a\u624b\u9806 (\u5c0e\u95a2\u6570\u3092\u542b\u3080) \u306b\u5f93\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u308c\u304c\u3069\u306e\u3088\u3046\u306b\u884c\u308f\u308c\u308b\u304b\u306f\u3053\u3053\u3067\u898b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059:<\/p>\n<p> <span style=\"color:#ff951b\">\u27a4<\/span><strong>\u53c2\u7167:<\/strong><span style=\"text-decoration: underline;\"><a href=\"https:\/\/mathority.org\/ja\/\u95a2\u6570\u306e\u8868\u73fe\/\">\u95a2\u6570\u306e\u8868\u73fe\u65b9\u6cd5<\/a><\/span><\/p>\n<p>\u3054\u89a7\u306e\u3068\u304a\u308a\u3001\u591a\u9805\u5f0f\u306b\u306f\u7121\u9650\u306e\u9805\u3092\u542b\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u305f\u3081\u3001\u591a\u9805\u5f0f\u95a2\u6570\u306e\u7a2e\u985e\u306f\u5b9f\u969b\u306b\u306f\u7121\u9650\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u30014 \u6b21\u95a2\u6570\u306f 3 \u6b21\u95a2\u6570\u306b\u4f3c\u3066\u3044\u307e\u3059\u304c\u30012 \u6b21\u9805\u304c\u8ffd\u52a0\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u91cd\u8981\u306a\u3053\u3068\u306f\u3001\u591a\u9805\u5f0f\u95a2\u6570\u306e\u7a2e\u985e\u304c\u95a2\u6570\u306e\u6b21\u6570\u306b\u3088\u3063\u3066\u533a\u5225\u3055\u308c\u308b\u3053\u3068\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3059\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"propiedades-de-las-funciones-polinomicas\"><\/span>\u591a\u9805\u5f0f\u95a2\u6570\u306e\u6027\u8cea<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u591a\u9805\u5f0f\u95a2\u6570\u306b\u306f\u6b21\u306e\u7279\u5fb4\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u591a\u9805\u5f0f\u95a2\u6570\u306e\u5b9a\u7fa9\u57df\u306f\u5b9f\u6570\u306e\u30bb\u30c3\u30c8\u3067\u3059\u3002<\/li>\n<\/ul>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-095bba55b6d2c6da4bcb6e711357e3e1_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{Dom } f=\\mathbbf{R}\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"91\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<ul>\n<li>\u3059\u3079\u3066\u306e\u591a\u9805\u5f0f\u95a2\u6570\u306f\u9023\u7d9a\u3067\u3059\u3002<\/li>\n<\/ul>\n<ul>\n<li> 1 \u3088\u308a\u5927\u304d\u3044\u6b21\u6570\u306e\u591a\u9805\u5f0f\u95a2\u6570\u306b\u306f\u6f38\u8fd1\u7dda\u304c\u3042\u308a\u307e\u305b\u3093\u3002<\/li>\n<\/ul>\n<ul>\n<li>\u591a\u9805\u5f0f\u95a2\u6570\u306e\u30bf\u30a4\u30d7\u306b\u95a2\u4fc2\u306a\u304f\u3001\u7e26\u8ef8 (Y \u8ef8) \u3068\u306e\u552f\u4e00\u306e\u4ea4\u70b9\u306f\u3001\u305d\u306e\u72ec\u7acb\u9805\u306e\u9ad8\u3055\u3001\u3064\u307e\u308a\u6b21\u306e\u70b9\u306b\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-bbda09260d0213bbb50849bbfc546647_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(0,a_0)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"46\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<ul>\n<li>\u4e00\u65b9\u3001\u591a\u9805\u5f0f\u95a2\u6570\u306f\u3001\u6700\u5927\u3067\u3082\u95a2\u6570\u306e\u6b21\u6570\u3068\u540c\u3058\u56de\u6570\u3060\u3051\u6a2a\u8ef8 (X \u8ef8) \u3092\u5207\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<ul>\n<li>\u591a\u9805\u5f0f\u95a2\u6570\u306b\u5076\u6570\u6b21\u306e\u9805\u3057\u304b\u306a\u3044\u5834\u5408\u3001\u3053\u308c\u306f\u305d\u308c\u304c OY \u8ef8\u306b\u95a2\u3057\u3066\u5bfe\u79f0\u3067\u3042\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u4e00\u65b9\u3001\u591a\u9805\u5f0f\u95a2\u6570\u306b\u5947\u6570\u6b21\u306e\u9805\u3057\u304b\u306a\u3044\u5834\u5408\u3001\u3053\u308c\u306f\u95a2\u6570\u304c\u5ea7\u6a19\u306e\u539f\u70b9\u306b\u95a2\u3057\u3066\u5bfe\u79f0\u3067\u3042\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<ul>\n<li>\u591a\u9805\u5f0f\u95a2\u6570\u306e\u76f8\u5bfe\u6975\u5024 (\u6700\u5927\u307e\u305f\u306f\u6700\u5c0f) \u306e\u6570\u306f\u3001\u6700\u5927\u3067\u3082\u95a2\u6570\u306e\u591a\u9805\u5f0f\u306e\u6b21\u6570\u304b\u3089 1 \u3092\u5f15\u3044\u305f\u5024\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<ul>\n<li>\u591a\u9805\u5f0f\u95a2\u6570\u306e\u5909\u66f2\u70b9\u306e\u6570\u306f\u3001\u6700\u5927\u3067\u3082\u95a2\u6570\u306e\u591a\u9805\u5f0f\u306e\u6b21\u6570\u304b\u3089 2 \u3092\u5f15\u3044\u305f\u5024\u306b\u7b49\u3057\u304f\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<ul>\n<li>\u6f14\u7b97\u306f\u591a\u9805\u5f0f\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u5b9f\u884c\u3067\u304d\u307e\u3059\u3002\n<ul>\n<li> 2 \u3064\u306e\u591a\u9805\u5f0f\u95a2\u6570\u306e\u5408\u8a08\u306b\u3088\u308a\u3001\u5225\u306e\u591a\u9805\u5f0f\u95a2\u6570\u304c\u5f97\u3089\u308c\u307e\u3059\u3002<\/li>\n<li> 2 \u3064\u306e\u591a\u9805\u5f0f\u95a2\u6570\u306e\u7a4d\u306b\u3088\u308a\u3001\u5225\u306e\u591a\u9805\u5f0f\u95a2\u6570\u304c\u751f\u3058\u307e\u3059\u3002<\/li>\n<li>\u591a\u9805\u5f0f\u95a2\u6570\u306b\u30b9\u30ab\u30e9\u30fc (\u5b9f\u6570) \u3092\u4e57\u7b97\u3059\u308b\u3068\u3001\u540c\u69d8\u306e\u591a\u9805\u5f0f\u95a2\u6570\u304c\u751f\u6210\u3055\u308c\u307e\u3059\u304c\u3001\u305d\u306e\u30b0\u30e9\u30d5\u306f\u7e2e\u5c0f\u307e\u305f\u306f\u62e1\u5927\u3055\u308c\u307e\u3059\u3002<\/li>\n<li> 2 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