\u6570\u5b66\u3067\u306f\u3001\u3053\u3068\u3070\u306e\u610f\u5473\u3092\u5b9a\u7fa9\u3059\u308b\u3068\u3044\u3046\u6163\u7fd2\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u3001\u3053\u3068\u3070\u306e\u610f\u5473\u3092\u5b9a\u7fa9\u3059\u308b\u3068\u3044\u3046\u6163\u7fd2\u306f\u3001\u53b3\u5bc6\u306a\u8b70\u8ad6\u3092\u3057\u305f\u3044\u3001\u8aa4\u89e3\u3092\u306a\u304f\u3057\u305f\u3044\u3068\u3044\u3046\u6b32\u6c42\u304b\u3089\u751f\u307e\u308c\u307e\u3057\u305f\u3002<\/p>\n
\u300c\u65b9\u7a0b\u5f0f\u300d\u306f\u6570\u5b66\u3067\u306f\u91cd\u8981\u306a\u7528\u8a9e\u3067\u3059\u304c\u3001\u3053\u306e\u3053\u3068\u3070\u306b\u306f\u7570\u306a\u308b\uff12\u3064\u306e\u610f\u5473\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
\u4e2d\u5b66\u3001\u9ad8\u6821\u306e\u6570\u5b66\u3067\u306f\u3001\u300c1\u6b21\u65b9\u7a0b\u5f0f\u300d\u3001\u300c2\u6b21\u65b9\u7a0b\u5f0f\u300d\u3068\u3044\u3046\u5358\u5143\u304c\u3042\u308a\u307e\u3059\u3002\u4e00\u65b9\u3067\u3001\u76f4\u7dda\u306e\u65b9\u7a0b\u5f0f\u3084\u5186\u306e\u65b9\u7a0b\u5f0f\u306b\u3064\u3044\u3066\u5b66\u3076\u300c\u56f3\u5f62\u3068\u65b9\u7a0b\u5f0f\u300d\u3068\u3044\u3046\u5358\u5143\u3082\u3042\u308a\u307e\u3059\u3002\u3053\u306e\uff12\u3064\u306e\u5206\u91ce\u3067\u4f7f\u308f\u308c\u3066\u3044\u308b\u65b9\u7a0b\u5f0f\u306f\u3001\u540c\u3058\u3053\u3068\u3070\u306a\u306e\u3060\u304b\u3089\u3001\u540c\u3058\u610f\u5473\u3060\u308d\u3046\u3068\u601d\u3046\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u533a\u5225\u3057\u3066\u304a\u3044\u305f\u65b9\u304c\u7406\u89e3\u3057\u3084\u3059\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n
1\u6b21\u65b9\u7a0b\u5f0f\u306f\u89e3\u304f\u305f\u3081\u306e\u3082\u306e\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u6b21\u306e\u554f\u984c\u304c\u3042\u308b\u3068\u3057\u307e\u3059\u3002<\/p>\n
\u554f\u984c\uff11\u3000\u6b21\u306e\u65b9\u7a0b\u5f0f\u3092\u89e3\u3051\uff1ax+3=4<\/p>\n
\u89e3\u7b54\u3000\u4e21\u8fba\u306b -3 \u3092\u52a0\u3048\u3066\u3001(x+3)-3=4-3 \u3068\u5909\u5f62\u3057\u3001\u3053\u3053\u3067\u3001\u5de6\u8fba\u306e\u62ec\u5f27\u3092\u3064\u3051\u308b\u4f4d\u7f6e\u3092\u5909\u3048\u3066\u3001x+(3-3)\u3068\u76f4\u3057\u30013-3=0 \u3092\u4f7f\u3046\u3068\u3001x+0=4-3 \u3068\u306a\u308a\u307e\u3059\u3002\u3055\u3089\u306b\u3001x+0 \u306f x \u3068\u306a\u308a\u307e\u3059\u30024-3 \u306f 1 \u3068\u306a\u308a\u307e\u3059\u3002\u3088\u3063\u3066\u3001x = 1 \u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n
\u3053\u306e\u3088\u3046\u306b\u6587\u5b57 x \u3092\u542b\u3080\u65b9\u7a0b\u5f0f\u3092\u300c\u89e3\u304f\u300d\u3068\u306f\u3001\u305d\u308c\u3092\u300cx = **\u300d\u306e\u5f62\u306b\u76f4\u3059\u3053\u3068\u3067\u3042\u308a\u3001\u3053\u306e\u3068\u304d\u3001\u672a\u77e5\u6570 x \u306e\u5024\u304c\u6c42\u3081\u3089\u308c\u305f\u3001\u3042\u308b\u3044\u306f\u6c42\u307e\u3063\u305f\u3068\u3044\u3044\u307e\u3059\u3002\uff08\u6c42\u307e\u3063\u305f\u306f\u3001\u95a2\u6771\u5730\u65b9\u306e\u65b9\u8a00\u3067\u3059\u3002\uff09\u300c**\u300d\u306e\u90e8\u5206\u306b\u306f x \u304c\u542b\u307e\u308c\u3066\u3044\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u30022\u6b21\u65b9\u7a0b\u5f0f\u30013\u6b21\u65b9\u7a0b\u5f0f\u306b\u3064\u3044\u3066\u3082\u540c\u69d8\u3067\u3059\u3002<\/p>\n
\u4e0a\u306e\u89e3\u7b54\u306e\u9014\u4e2d\u306e\u30d7\u30ed\u30bb\u30b9\u3067\u3001\u300cx+0 \u306f x \u3068\u306a\u308b\u304b\u3089\u300d\u306e\u90e8\u5206\u3092\u300c0 \u306f\u6d88\u3057\u3066\u3088\u3044\u300d\u3068\u7fd2\u3063\u305f\u3001\u3042\u308b\u3044\u306f\u305d\u3046\u899a\u3048\u3066\u3044\u308b\u4eba\u304c\u3044\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u305d\u3046\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u6b63\u3057\u3044\u6cd5\u5247\u306f\u3001\u300c\u3059\u3079\u3066\u306e\u6570 a \u306b\u5bfe\u3057\u3066 a + 0 = a\u300d\u3067\u3059\u3002\u307e\u305f\u3001\u300c\u3059\u3079\u3066\u306e\u6570 a \u306b\u5bfe\u3057\u3066 0\u00d7a = 0\u300d\u3068\u3044\u3046\u6cd5\u5247\u3082\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306b\u30010 \u3068\u3044\u3046\u6570\u306f\u6570\u5f0f\u306e\u4e2d\u306e\u3069\u3053\u306b\u3042\u3063\u3066\u3082\u300c\u6d88\u3048\u308b\u300d\u308f\u3051\u3067\u306f\u306a\u3044\u306e\u3067\u3059\u3002\u6570\u5f0f\u306e\u4e2d\u3067\u6570 0 \u304c\u3069\u3053\u306b\u3042\u3063\u3066\u3001\u3069\u306e\u3088\u3046\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u3066\u3044\u308b\u304b\u306b\u3088\u3063\u3066\u3001\u4f7f\u7528\u3067\u304d\u308b\u6cd5\u5247\uff08\u516c\u5f0f\uff09\u306f\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n
\u3055\u3066\u3001\u4e00\u65b9\u3001\u300c\u65b9\u7a0b\u5f0f\u300d\u3068\u3044\u3046\u3053\u3068\u3070\u306b\u306f\u3001\u5225\u306e\u610f\u5473\u3082\u3042\u308a\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001<\/p>\n
\u554f\u984c\uff12\u3000\u5e73\u9762\u4e0a\u306e2\u70b9 A(0, 0)\u3001B(0, 2) \u304b\u3089\u7b49\u8ddd\u96e2\u306b\u3042\u308b\u70b9 P(x, y) \u304c\u6e80\u305f\u3059\u65b9\u7a0b\u5f0f\u3092\u6c42\u3081\u306a\u3055\u3044\u3002<\/p>\n
\u89e3\u7b54\u3000\u70b9P\u304c\u6e80\u305f\u3059\u6761\u4ef6\u306f\u3001PA=PB\u3067\u3042\u308b\u30022\u70b9\u9593\u306e\u8ddd\u96e2\u306e\u516c\u5f0f\u3092\u4f7f\u3046\u3068\u3001PA^2 = (x-0)^2+(y-0)^2 = x^2 + y^2 \u3067\u3042\u308a\u3001PB^2 = (x-2)^2 + y^2 \u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308b\u3002PA = PB \u304b\u3089
\nx^2 + y^2 = (x-2)^2 + y^2
\n\u3068\u306a\u308a\u3001(x-2)^2 \u3092\u5c55\u958b\u3059\u308b\u3068 x^2 – 4 x + 4 \u3068\u306a\u308b\u3002\u3053\u308c\u304b\u3089\u3001\u6574\u7406\u3059\u308b\u3068\u3001-4 x + 4 = 0\u3068\u306a\u308a\u3001x = 1 \u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n
\u3053\u306e\u89e3\u7b54\u3092\u898b\u308b\u3068\u3001\u554f\u984c\uff11\u306e\u89e3\u7b54\u3068\u540c\u3058\u3060\u3068\u601d\u3046\u4eba\u304c\u3044\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u78ba\u304b\u306b\u3001x = 1 \u3068\u3044\u3046\u7b54\u3048\u3060\u3051\u3092\u898b\u308b\u3068\u540c\u3058\u3088\u3046\u306b\u3082\u898b\u3048\u307e\u3059\u304c\u3001\u610f\u5473\u306f\u307e\u3063\u305f\u304f\u9055\u3044\u307e\u3059\u3002\u554f\u984c\uff12\u306e\u7b54\u3048\u306e x = 1 \u306f\u3001\u70b9 (1, 0) \u3092\u901a\u308a\u3001y \u8ef8\u306b\u5e73\u884c\u306a\u76f4\u7dda\u3092\u8868\u3057\u3066\u3044\u308b\u306e\u3067\u3059\u3002\u554f\u984c\uff12\u3067\u6c42\u3081\u3089\u308c\u305f\u3082\u306e\u306f\u3001x \u306e\u5024\u3067\u306f\u306a\u304f\u3066\u3001\u6761\u4ef6\u3092\u6e80\u305f\u3059\u70b9 P \u306e\u5168\u4f53\u304c\u4f5c\u308b\u56f3\u5f62\uff08\u3059\u306a\u308f\u3061\u3001\u70b9 P \u306e\u8ecc\u8de1\uff09\u306e\u65b9\u7a0b\u5f0f\u3067\u3059\u3002<\/p>\n
\u3053\u306e\u3088\u3046\u306b\u3001\u540c\u3058\u6570\u5b66\u3068\u3044\u3046\u79d1\u76ee\u306e\u4e2d\u3067\u65b9\u7a0b\u5f0f\u3068\u3044\u3046\u540c\u3058\u3053\u3068\u3070\u304c\u767b\u5834\u3057\u3066\u3082\u3001\u305d\u306e\u6587\u8108\u306b\u3088\u3063\u3066\u3001\u307e\u3063\u305f\u304f\u9055\u3046\uff12\u3064\u306e\u610f\u5473\u304c\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n
\u9006\u306b\u3001\u3053\u308c\u3089\u306e\uff12\u3064\u306e\u300c\u65b9\u7a0b\u5f0f\u300d\u304c\u540c\u3058\u610f\u5473\u3060\u3068\u601d\u3063\u3066\u3057\u307e\u3046\u3068\u3001\u6df7\u4e71\u306e\u539f\u56e0\u306b\u306a\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u540c\u3058\u3068\u8003\u3048\u3066\u3082\u3001\u3042\u308b\u610f\u5473\u3067\u306f\u9593\u9055\u3044\u3067\u306f\u306a\u3044\u306e\u3067\u3059\u304c\u3001\u305d\u308c\u306f\u300c\u5927\u3089\u304b\u306a\u300d\u89b3\u70b9\u304b\u3089\u898b\u305f\u5834\u5408\u3067\u3059\u3002\u5b9f\u969b\u306b\u6570\u5b66\u3092\u7406\u89e3\u3057\u3001\u554f\u984c\u3092\u89e3\u304f\u3068\u3044\u3046\u73fe\u5b9f\u7684\u306a\u76ee\u7684\u304b\u3089\u306f\u3001\u65b9\u7a0b\u5f0f\u3068\u3044\u3046\uff11\u3064\u306e\u3053\u3068\u3070\u304c\u3082\u3064\u3053\u308c\u3089\uff12\u3064\u306e\u610f\u5473\u306f\u9055\u3046\u306e\u3060\u3001\u9055\u3046\u6982\u5ff5\u3092\u305f\u307e\u305f\u307e\u540c\u3058\u3053\u3068\u3070\u3067\u8868\u3057\u3066\u3044\u308b\u306e\u3060\u3068\u601d\u3063\u305f\u307b\u3046\u304c\u3001\u6570\u5b66\u3092\u304d\u3061\u3093\u3068\u7406\u89e3\u3067\u304d\u308b\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u6570\u5b66\u3067\u306f\u3001\u3053\u3068\u3070\u306e\u610f\u5473\u3092\u5b9a\u7fa9\u3059\u308b\u3068\u3044\u3046\u6163\u7fd2\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u3001\u3053\u3068\u3070\u306e\u610f\u5473\u3092\u5b9a\u7fa9\u3059\u308b\u3068\u3044\u3046\u6163\u7fd2\u306f\u3001\u53b3\u5bc6\u306a\u8b70\u8ad6\u3092\u3057\u305f\u3044\u3001\u8aa4\u89e3\u3092\u306a\u304f\u3057\u305f\u3044\u3068\u3044\u3046\u6b32\u6c42\u304b\u3089\u751f\u307e\u308c\u307e\u3057\u305f\u3002 \u300c\u65b9\u7a0b\u5f0f\u300d\u306f\u6570\u5b66\u3067\u306f\u91cd\u8981\u306a\u7528\u8a9e\u3067\u3059\u304c\u3001\u3053\u306e\u3053\u3068\u3070\u306b\u306f\u7570\u306a\u308b […]","protected":false},"author":34,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[4],"tags":[],"_links":{"self":[{"href":"https:\/\/blog.t-kougei.ac.jp\/gen\/wp-json\/wp\/v2\/posts\/549"}],"collection":[{"href":"https:\/\/blog.t-kougei.ac.jp\/gen\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.t-kougei.ac.jp\/gen\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.t-kougei.ac.jp\/gen\/wp-json\/wp\/v2\/users\/34"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.t-kougei.ac.jp\/gen\/wp-json\/wp\/v2\/comments?post=549"}],"version-history":[{"count":2,"href":"https:\/\/blog.t-kougei.ac.jp\/gen\/wp-json\/wp\/v2\/posts\/549\/revisions"}],"predecessor-version":[{"id":552,"href":"https:\/\/blog.t-kougei.ac.jp\/gen\/wp-json\/wp\/v2\/posts\/549\/revisions\/552"}],"wp:attachment":[{"href":"https:\/\/blog.t-kougei.ac.jp\/gen\/wp-json\/wp\/v2\/media?parent=549"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.t-kougei.ac.jp\/gen\/wp-json\/wp\/v2\/categories?post=549"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.t-kougei.ac.jp\/gen\/wp-json\/wp\/v2\/tags?post=549"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}