{"id":7742,"date":"2025-05-23T18:17:07","date_gmt":"2025-05-23T09:17:07","guid":{"rendered":"https:\/\/www.aphex-group.com\/blog\/?p=7742"},"modified":"2025-06-10T22:09:20","modified_gmt":"2025-06-10T13:09:20","slug":"%e4%b8%80%e6%ac%a1%e9%96%a2%e6%95%b0%e3%81%ae%e3%82%b0%e3%83%a9%e3%83%95%e3%81%ae%e3%81%8b%e3%81%8d%e6%96%b9%e3%82%92%e4%be%8b%e9%a1%8c%e3%81%a7%e5%ae%8c%e5%85%a8%e3%83%9e%e3%82%b9%e3%82%bf%e3%83%bc","status":"publish","type":"post","link":"https:\/\/www.aphex-group.com\/blog\/432\/","title":{"rendered":"\u4e00\u6b21\u95a2\u6570\u306e\u30b0\u30e9\u30d5\u306e\u304b\u304d\u65b9\u3092\u4f8b\u984c\u3067\u5b8c\u5168\u30de\u30b9\u30bf\u30fc\uff5c\u4e2d2 \u6570\u5b66\u306e\u57fa\u790e"},"content":{"rendered":"<h2>\uff11. \u30b0\u30e9\u30d5\u3068\u306f<\/h2>\n<p>\u307e\u305a\u306f\u3001\u300c\u30b0\u30e9\u30d5\u300d\u3068\u306f\u4f55\u304b\u306b\u3064\u3044\u3066\u304a\u3055\u3089\u3044\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u30b0\u30e9\u30d5\u3068\u306f\u3001\u3042\u308b\u95a2\u4fc2\u3092\u56f3\u306b\u3057\u3066\u8868\u3057\u305f\u3082\u306e\u3067\u3059\u3002\u6570\u5b66\u3067\u306f\u30012\u3064\u306e\u6570$\uff08 x, y \uff09$\u306e\u95a2\u4fc2\u3092\u30b0\u30e9\u30d5\u3067\u8868\u3059\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002\u7279\u306b\u300c\u4e00\u6b21\u95a2\u6570\u300d\u306e\u5b66\u7fd2\u3067\u306f\u3001\u30b0\u30e9\u30d5\u306e\u57fa\u672c\u7684\u306a\u898b\u65b9\u3084\u304b\u304d\u65b9\u304c\u3068\u3066\u3082\u5927\u5207\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>\u6a2a\u8ef8\u3068\u7e26\u8ef8<\/h3>\n<p>\u30b0\u30e9\u30d5\u306b\u306f\u3001\u300c\u6a2a\u8ef8\u300d\u3068\u300c\u7e26\u8ef8\u300d\u304c\u3042\u308a\u307e\u3059\u3002<br \/>\n\u6a2a\u8ef8\u306f\u300c $x$ \u8ef8\u300d\u3068\u3044\u3044\u3001$x$ \u306e\u5024\u3092\u8868\u3057\u307e\u3059\u3002\u7e26\u8ef8\u306f\u300c $y$ \u8ef8\u300d\u3068\u3044\u3044$ y $\u306e\u5024\u3092\u8868\u3057\u307e\u3059\u3002<br \/>\n\u3053\u306e2\u3064\u306e\u8ef8\u304c\u4ea4\u308f\u308b\u70b9\u3092\u300c\u539f\u70b9\u300d\u3068\u3044\u3044\u3001\u5ea7\u6a19\u3067\u306f $(0, 0)$ \u3068\u8868\u3057\u307e\u3059\u3002<\/p>\n<h3>\u5ea7\u6a19<\/h3>\n<p>\u300c\u5ea7\u6a19\u300d\u3068\u306f\u3001\u30b0\u30e9\u30d5\u4e0a\u306e\u70b9\u306e\u4f4d\u7f6e\u3092\u8868\u3059\u305f\u3081\u306e $x $\u3068$ y $\u306e\u5024\u306e\u7d44\u307f\u5408\u308f\u305b\u3067\u3059\u3002<br \/>\n\u305f\u3068\u3048\u3070\u3001\u70b9A\u304c\u6a2a\u306b$3$\uff08 $x$ \u8ef8\u65b9\u5411\u306b$3$\uff09\u3001\u7e26\u306b$2$\uff08 $y $\u8ef8\u65b9\u5411\u306b$2$\uff09\u306e\u4f4d\u7f6e\u306b\u3042\u308b\u3068\u304d\u3001\u300c\u70b9A\u306e\u5ea7\u6a19\u306f $(3, 2)$\u300d\u3068\u3044\u3044\u307e\u3059\u3002\u300c\u70b9A $(3, 2)$\u300d\u3042\u308b\u3044\u306f\u300c A $(3, 2)$\u300d\u306e\u3088\u3046\u306b\u304b\u304f\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u70b9$A$\u3067\u306a\u304f\u3066\u3082\u3088\u3044\u5834\u5408\u306f\u3001\u5358\u306b\u300c\u70b9 $(3, 2)$\u300d\u306a\u3069\u3068\u66f8\u304f\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u5ea7\u6a19\u306f\u3001\u5fc5\u305a \uff08 $x$ \u306e\u5024, $y$ \u306e\u5024\uff09 \u306e\u7d44\u307f\u5408\u308f\u305b\u3067\u66f8\u304d\u307e\u3059\u3002<br \/>\n\u3053\u306e\u9806\u756a\u3092\u9593\u9055\u3048\u306a\u3044\u3088\u3046\u306b\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u30b0\u30e9\u30d5\u306e\u898b\u65b9\u3092\u3057\u3063\u304b\u308a\u8eab\u306b\u3064\u3051\u3066\u304a\u304f\u3068\u3001\u4eca\u5f8c\u306e\u5b66\u7fd2\u304c\u3068\u3066\u3082\u30b9\u30e0\u30fc\u30ba\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>\uff12. \u6bd4\u4f8b\u306e\u5fa9\u7fd2<\/h2>\n<p>\u6b21\u306b\u3001\u4e2d1\u306e\u3068\u304d\u306b\u5b66\u3093\u3060\u300c\u6bd4\u4f8b\u300d\u306b\u3064\u3044\u3066\u5fa9\u7fd2\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>$y = ax $\u306e\u30b0\u30e9\u30d5<\/h3>\n<p>\u6bd4\u4f8b\u306e\u5f0f $y = ax$ \u306e\u30b0\u30e9\u30d5\u306f\u3001\u899a\u3048\u3066\u3044\u307e\u3059\u304b\uff1f<br \/>\n\u3053\u306e\u30b0\u30e9\u30d5\u306f\u3001\u300c\u539f\u70b9\u3092\u901a\u308b\u76f4\u7dda\u300d\u306b\u306a\u308a\u307e\u3059\u3002<br \/>\n\u30b0\u30e9\u30d5\u3092\u304b\u304f\u3068\u304d\u306f\u3001\u539f\u70b9\u3068\u3082\u30461\u3064\u306e\u70b9\u3092\u3068\u3063\u3066\u3001\u305d\u308c\u3092\u76f4\u7dda\u3067\u7d50\u3076\u306e\u304c\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002<\/p>\n<p>\u7d9a\u304f\u7ae0\u3067\u306f\u3001\u300c\u4e00\u6b21\u95a2\u6570\u306e\u30b0\u30e9\u30d5\u300d\u306b\u3064\u3044\u3066\u5b66\u3093\u3067\u3044\u304d\u307e\u3059\u3002\u30b0\u30e9\u30d5\u306e\u610f\u5473\u30fb\u5ea7\u6a19\u306e\u8aad\u307f\u65b9\u30fb\u6bd4\u4f8b\u306e\u5f0f\u3068\u30b0\u30e9\u30d5\u3092\u3057\u3063\u304b\u308a\u5fa9\u7fd2\u3057\u7406\u89e3\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h2>\uff13. \u4e00\u6b21\u95a2\u6570\u306e\u30b0\u30e9\u30d5<\/h2>\n<p>\u307e\u305a\u3001\u4e00\u6b21\u95a2\u6570 $y = ax + b$\u304c\u3069\u3093\u306a\u30b0\u30e9\u30d5\u306b\u306a\u308b\u306e\u304b\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e$ y = ax + b $\u306e\u30b0\u30e9\u30d5\u3082\u3001\u6bd4\u4f8b\u306e\u5f0f $y = ax$\u3068\u540c\u3058\u3088\u3046\u306b\u76f4\u7dda\u306b\u306a\u308a\u307e\u3059\u3002<br \/>\n\u305f\u3060\u3057\u3001$y = ax + b$ \u306e\u30b0\u30e9\u30d5\u306f\u3001\u539f\u70b9$\uff080, 0\uff09$\u3092\u901a\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u4e00\u6b21\u95a2\u6570\u306e\u30b0\u30e9\u30d5\u3092\u304b\u304f\u3068\u304d\u306f\u3001\u30b0\u30e9\u30d5\u304c\u901a\u308b2\u3064\u306e\u70b9\u3092\u6c42\u3081\u3066\u3001\u305d\u308c\u3089\u3092\u76f4\u7dda\u3067\u7d50\u3076\u306e\u304c\u8fd1\u9053\u3067\u3059\u3002<\/p>\n<p><strong>\u30dd\u30a4\u30f3\u30c8<\/strong>\u3000\u4e00\u6b21\u95a2\u6570 $y = ax + b $\u306e\u30b0\u30e9\u30d5\u306f\u30012\u70b9\u3092\u6c42\u3081\u3066\u76f4\u7dda\u3067\u7d50\u3076<\/p>\n<h2>\uff14. \u4e00\u6b21\u95a2\u6570\u306e\u30b0\u30e9\u30d5\u306e\u304b\u304d\u65b9\uff5c2\u70b9\u3092\u7d50\u3076<\/h2>\n<p>\u305d\u308c\u3067\u306f\u3001\u3044\u3088\u3044\u3088\u4e00\u6b21\u95a2\u6570$ y = ax + b $\u306e\u30b0\u30e9\u30d5\u3092\u304b\u3044\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u7e70\u308a\u8fd4\u3057\u306b\u306a\u308a\u307e\u3059\u304c\u3001\u30b0\u30e9\u30d5\u3092\u304b\u304f\u3068\u304d\u306f\u3001\u30b0\u30e9\u30d5\u304c\u901a\u308b2\u3064\u306e\u70b9\u3092\u6c42\u3081\u3066\u3001\u305d\u308c\u3092\u76f4\u7dda\u3067\u7d50\u3073\u307e\u3059\u3002<\/p>\n<p>2\u3064\u306e\u70b9\u306f\u3001$x = 0$ \u3084$ x = 1 $\u3092\u5f0f\u306b\u4ee3\u5165\u3057\u3001\u305d\u308c\u305e\u308c\u306e y \u306e\u5024\u3092\u6c42\u3081\u308b\u3053\u3068\u3067\u5f97\u3089\u308c\u307e\u3059\u3002<\/p>\n<p>\u306a\u305c\u3001$x = 0$ \u3084$ x = 1 $\u3092\u5f0f\u306b\u4ee3\u5165\u3059\u308b\u304b\u3068\u3044\u3046\u3068\u3001\u5c0f\u3055\u3044\u5024\u3092\u7528\u3044\u305f\u65b9\u304c\u3001\u8a08\u7b97\u304c\u697d\u306b\u306a\u308b\u3053\u3068\u304c\u3042\u308b\u304b\u3089\u3067\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001$y = x + 1 $\u306e\u4e00\u6b21\u95a2\u6570\u306e\u5834\u5408\u306f\u3001<br \/>\n$x = 0 \u3092\u4ee3\u5165\u3059\u308b\u3068 y = 1$<br \/>\n$x = 1 \u3092\u4ee3\u5165\u3059\u308b\u3068 y = 2$<br \/>\n\u3068\u306a\u308a\u307e\u3059\u306e\u3067\u30012\u3064\u306e\u70b9\u306e\u5ea7\u6a19\u306f$\uff080, 1\uff09\uff081, 2\uff09$\u3068\u306a\u308a\u307e\u3059\u3002<br \/>\n\u3053\u306e2\u3064\u306e\u5ea7\u6a19\u3092\u76f4\u7dda\u3067\u7d50\u3079\u3070\u3001\u30b0\u30e9\u30d5\u306e\u5b8c\u6210\u3067\u3059\u3002<\/p>\n<p>\u30dd\u30a4\u30f3\u30c8\u3000\u5f0f\u306b $x = 0\u3001x = 1 $\u3092\u4ee3\u5165\u3057\u3066\u30012\u3064\u306e\u70b9\u306e\u5ea7\u6a19\u3092\u6c42\u3081\u3066\u76f4\u7dda\u3067\u7d50\u3076<\/p>\n<h3>\u4f8b\u984c<\/h3>\n<h4>\uff08\uff11\uff09$ y = 2x $\u306e\u30b0\u30e9\u30d5<\/h4>\n<p>$x = 0$ \u3092\u4ee3\u5165\u3059\u308b\u3068 $y = 0$<br \/>\n$x = 1 $\u3092\u4ee3\u5165\u3059\u308b\u3068$ y = 2$<br \/>\n\u306b\u306a\u308b\u306e\u3067\u30012\u70b9$\uff080, 0\uff09\uff081, 2\uff09$\u3092\u76f4\u7dda\u3067\u7d50\u3076\u3068\u6c42\u3081\u305f\u3044\u30b0\u30e9\u30d5\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h4>\uff08\uff12\uff09$ y = 2x + 3 $\u306e\u30b0\u30e9\u30d5<\/h4>\n<p>$x = 0 \u3092\u4ee3\u5165\u3059\u308b\u3068 y = 3$<br \/>\n$x = 1 \u3092\u4ee3\u5165\u3059\u308b\u3068 y = 5$<br \/>\n\u306b\u306a\u308b\u306e\u3067\u30012\u70b9$\uff080, 1\uff09\uff081, 5\uff09$\u3092\u76f4\u7dda\u3067\u7d50\u3076\u3068\u6c42\u3081\u305f\u3044\u30b0\u30e9\u30d5\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>\uff15\uff0e\u4e00\u6b21\u95a2\u6570\u306e\u30b0\u30e9\u30d5\u306e\u304b\u304d\u65b9\uff5c\u50be\u304d\u3068\u5207\u7247<\/h2>\n<p>\u3053\u3053\u3067\u306f\u3001\u300c\u50be\u304d\u300d\u3068\u300c\u5207\u7247\u300d\u304b\u3089\u30b0\u30e9\u30d5\u3092\u304b\u304f\u3084\u308a\u65b9\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<p>\u4e00\u6b21\u95a2\u6570\u306e\u30b0\u30e9\u30d5\u306b\u6163\u308c\u3066\u304f\u308b\u3068\u3001\u4e00\u6b21\u95a2\u6570\u306e\u5f0f\u306e\u5f62\u3092\u898b\u305f\u3060\u3051\u3067\u3001\u30b0\u30e9\u30d5\u3092\u304b\u304f\u306e\u306b\u697d\u306a\u65b9\u304c\u308f\u304b\u3063\u3066\u304d\u307e\u3059\u3002\u65b9\u6cd5\u30922\u3064\u3068\u3082\u77e5\u3063\u3066\u304a\u304f\u3068\u3001\u30b1\u30a2\u30ec\u30b9\u30df\u30b9\u306e\u9632\u6b62\u306b\u3082\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p>\n<p>$y \uff1d ax \uff0b b$\u306f\u3001\u50be\u304d $a$\u3001\u5207\u7247 $b$\u306e\u76f4\u7dda\u3067\u3059\u3002<\/p>\n<p>\u50be\u304d$a$\uff1a\u5909\u5316\u306e\u5272\u5408\uff1d$\\frac{y \u306e\u5897\u52a0\u91cf}{x \u306e\u5897\u52a0\u91cf}$<br \/>\n$\u5207\u7247b\uff1ay\u8ef8\u4e0a\u306e\u70b9\uff08 x = 0 \u306e y \u306e\u5024\uff09$<\/p>\n<p>\u3053\u306e\u3053\u3068\u304b\u3089\u30014\u3064\u306e\u30b9\u30c6\u30c3\u30d7\u3067\u30b0\u30e9\u30d5\u3092\u304b\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<ol>\n<li>$y $\u8ef8\u4e0a\u306b$ b $\u306e\u5024\u3092\u3068\u308a\u3001\u30da\u30f3\u3067\u5370\u2460\u3092\u3064\u3051\u308b<\/li>\n<li>$a \u3092$\u5206\u6570\u306b\u306a\u304a\u3059<\/li>\n<li>\u2460\u3092\u30b9\u30bf\u30fc\u30c8\u306b\u3057\u3066\u3001$x$ \u8ef8\uff08\u30e8\u30b3\u65b9\u5411\uff09\u306b\u5206\u6bcd\u306e\u5024\u3092\u3001$y$ \u8ef8\uff08\u30bf\u30c6\u65b9\u5411\uff09\u306b\u5206\u5b50\u306e\u5024\u3092\u3068\u308a\u3001\u5370\u2461\u3092\u3064\u3051\u308b<\/li>\n<li>\u5370\u2460\u3068\u5370\u2461\u3092\u76f4\u7dda\u3067\u7d50\u3076<\/li>\n<\/ol>\n<p>\u3067\u306f\u3001\u540c\u3058\u4f8b\u984c\u3067\u5b9f\u969b\u306b\u30b0\u30e9\u30d5\u3092\u304b\u3044\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u30dd\u30a4\u30f3\u30c8\u3000\u5207\u7247$b\uff08y\u8ef8\u4e0a\u306e\u70b9\uff09\u3068\u50be\u304da\u306e\u5206\u3060\u3051\u79fb\u52d5\u3057\u305f\u70b9\u3092\u7d50\u3076$<\/p>\n<h3>\u4f8b\u984c<\/h3>\n<h4>\uff08\uff11\uff09$ y = 2x \u306e\u30b0\u30e9\u30d5$<\/h4>\n<p>$y = 2x \u3068 y = ax + b \u3092\u898b\u6bd4\u3079\u308b\u3068\u3001\u5207\u7247 b = 0\u3001\u50be\u304d a = 2 \u3068\u306a\u308a\u307e\u3059\u3002$<\/p>\n<p><strong>\u66f8\u304d\u65b9\uff1a<\/strong><\/p>\n<ol>\n<li>$y $\u8ef8\u4e0a\u306e\u5024\u306f 0 \u306b\u306a\u308b\u306e\u3067\u3001\u305d\u3053\u306b\u30da\u30f3\u3067\u5370\u2460\u3092\u3064\u3051\u308b<br \/>\n\uff08\u3053\u306e\u5834\u5408\u306f\u30b0\u30e9\u30d5\u306e\u539f\u70b9\u3068\u540c\u3058\u4f4d\u7f6e\u306b\u306a\u308b\uff09<\/li>\n<li>$a$ \u3092\u5206\u6570\u306b\u306a\u304a\u3059\u3068\u3001$\\frac{2}{1}$\u306b\u306a\u308b<\/li>\n<li>\u2460\u3092\u30b9\u30bf\u30fc\u30c8\u306b\u3057\u3066\u3001$x $\u8ef8\u65b9\u5411\u306b 1 \u9032\u307f\u3001$y$ \u8ef8\u65b9\u5411\u306b 2 \u9032\u3093\u3060\u3068\u3053\u308d\u306b\u5370\u2461\u3092\u3064\u3051\u308b<\/li>\n<li>\u5370\u2460\u3068\u5370\u2461\u3092\u76f4\u7dda\u3067\u7d50\u3076<\/li>\n<\/ol>\n<p>\u4e0a\u306e\u7ae0\u3067\u304b\u3044\u305f\u30b0\u30e9\u30d5\u3068\u540c\u3058\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h4>\uff08\uff12\uff09 $y = 2x + 3 $\u306e\u30b0\u30e9\u30d5<\/h4>\n<p>$y = 2x \u3068 y = 2x + 3 \u3092\u898b\u6bd4\u3079\u308b\u3068\u3001\u5207\u7247 $b = 3\u3001\u50be\u304d a = 2 $\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><strong>\u66f8\u304d\u65b9\uff1a<\/strong><\/p>\n<p>$y$ \u8ef8\u4e0a\u306e\u5024\u306f$ 3 $\u306b\u306a\u308b\u306e\u3067\u3001\u305d\u3053\u306b\u30da\u30f3\u3067\u5370\u2460\u3092\u3064\u3051\u308b<br \/>\n$a$\u3092\u5206\u6570\u306b\u306a\u304a\u3059\u3068\u30012\/1 \u306b\u306a\u308b<br \/>\n\u2460\u3092\u30b9\u30bf\u30fc\u30c8\u306b\u3057\u3066\u3001$x $\u8ef8\u65b9\u5411\u306b 1 \u9032\u307f\u3001$y $\u8ef8\u65b9\u5411\u306b 2 \u9032\u3093\u3060\u3068\u3053\u308d\u306b\u5370\u2461\u3092\u3064\u3051\u308b<br \/>\n\u5370\u2460\u3068\u5370\u2461\u3092\u76f4\u7dda\u3067\u7d50\u3076<\/p>\n<p>\u3053\u308c\u3082\u4e0a\u306e\u7ae0\u3067\u66f8\u3044\u305f\u30b0\u30e9\u30d5\u3068\u540c\u3058\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>$y = 2x$ \u3068 $y = 2x + 3 $\u306e\u30b0\u30e9\u30d5\u306e\u95a2\u4fc2<\/h3>\n<p>\u3053\u3053\u3067\u3001$y = 2x $\u3068 $y = 2x + 3$ \u306e\u30b0\u30e9\u30d5\u3092\u6bd4\u3079\u3066\u3001\u3069\u3093\u306a\u3053\u3068\u304c\u3044\u3048\u308b\u304b\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u30b0\u30e9\u30d5\u3092\u91cd\u306d\u3066\u307f\u308b\u3068\u3001$y=2x+3$ \u306e$y$ \u306e\u5024\u306f\u3001$y = 2x$ \u306e\u5024\u306b\u5e38\u306b$3$\u3092\u52a0\u3048\u305f\u6570\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<br \/>\n\u3064\u307e\u308a\u3001\u4e00\u6b21\u95a2\u6570 $y = ax + b $\u306f\u3001\u6bd4\u4f8b $y = ax \u3092 y \u8ef8\u65b9\u5411\u306b b$ \u3060\u3051\u5e73\u884c\u79fb\u52d5\u3057\u305f\u76f4\u7dda\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u3053\u3068\u304b\u3089\u3001\u300c\u50be\u304d $a $\u304c\u7b49\u3057\u30442\u3064\u306e\u4e00\u6b21\u95a2\u6570\u306e\u76f4\u7dda\u306f\u5e73\u884c\u306b\u306a\u308b\u300d\u3068\u3044\u3046\u3053\u3068\u304c\u3044\u3048\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u5e73\u884c\u306e\u95a2\u4fc2\u306f\u3001\u30c6\u30b9\u30c8\u306b\u3082\u51fa\u984c\u3055\u308c\u307e\u3059\u306e\u3067\u899a\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u30dd\u30a4\u30f3\u30c8\u3000\u50be\u304d$ a $\u304c\u7b49\u3057\u30442\u3064\u306e\u4e00\u6b21\u95a2\u6570\u306e\u76f4\u7dda\u306f\u5e73\u884c\u306b\u306a\u308b<\/p>\n<h2>\uff16\uff0e\u4e00\u6b21\u95a2\u6570\u306e\u5f0f\u3068\u30b0\u30e9\u30d5\u306e\u95a2\u4fc2<\/h2>\n<p>\u3053\u3053\u3067\u306f\u3001\u5c11\u3057\u8a73\u3057\u304f $y = ax + b$ \u306e\u300c\u50be\u304d $a$ \u3068\u30b0\u30e9\u30d5\u306e\u95a2\u4fc2\u300d\u300c\u5207\u7247 $b$ \u3092\u30b0\u30e9\u30d5\u306e\u95a2\u4fc2\u300d\u3092\u307f\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u95a2\u4fc2\u3092\u77e5\u3063\u3066\u304a\u304f\u3068\u3001\u4e00\u6b21\u95a2\u6570\u306e\u5f0f\u3092\u307f\u305f\u3060\u3051\u3067\u3001\u30b0\u30e9\u30d5\u304c\u3069\u3093\u306a\u76f4\u7dda\u306b\u306a\u308b\u304b\u3092\u7c21\u5358\u306b\u30a4\u30e1\u30fc\u30b8\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>\u50be\u304d$a$\u3068\u30b0\u30e9\u30d5\u306e\u95a2\u4fc2<\/h3>\n<p>$a &gt; 0\uff08 a \u304c\u6b63\u306e\u6570\uff09\u306e\u5834\u5408\u306f\u3001\u53f3\u4e0a\u304c\u308a\u306e\u76f4\u7dda\u306b\u306a\u308b$<br \/>\n$a = 0\u3000\u306e\u5834\u5408\u306f\u3001x \u8ef8\u3068\u5e73\u884c\u306e\u76f4\u7dda\u306b\u306a\u308b$<br \/>\n$a &lt; 0\uff08 a \u304c\u8ca0\u306e\u6570\uff09\u306e\u5834\u5408\u306f\u3001\u53f3\u4e0b\u304c\u308a\u306e\u76f4\u7dda\u306b\u306a\u308b$<\/p>\n<h3>\u5207\u7247$b$\u3068\u30b0\u30e9\u30d5\u306e\u95a2\u4fc2<\/h3>\n<p>$b &gt; 0\uff08 b \u304c\u6b63\u306e\u6570\uff09\u306e\u5834\u5408\u306f\u3001y \u8ef8\u4e0a\u306e\u70b9\u306fx\u8ef8\u3088\u308a\u4e0a\u306b\u306a\u308b$<br \/>\n$b = 0\u3000\u306e\u5834\u5408\u306f\u3001\u539f\u70b9\u3092\u901a\u308b\u76f4\u7dda\u306b\u306a\u308b$<br \/>\n$b &lt; 0\uff08 b \u304c\u8ca0\u306e\u6570\uff09\u306e\u5834\u5408\u306f\u3001y \u8ef8\u4e0a\u306e\u70b9\u306f x \u8ef8\u3088\u308a\u4e0b\u306b\u306a\u308b$<\/p>\n<h3>$a$ \u307e\u305f\u306f $b$ \u304c\u540c\u30582\u3064\u306e\u76f4\u7dda\u306e\u95a2\u4fc2<\/h3>\n<p>$a$ \u304c\u540c\u3058\u5834\u5408\u306f\u30012\u76f4\u7dda\u306f\u5e73\u884c\u306b\u306a\u308b<br \/>\n$b$ \u304c\u540c\u3058\u5834\u5408\u306f\u30012\u76f4\u7dda\u306f $y$ \u8ef8\u4e0a\u3067\u4ea4\u308f\u308b<\/p>\n<p><strong>\u30dd\u30a4\u30f3\u30c8<\/strong>\u3000\u50be\u304d $a$ \u3068\u5207\u7247 $b$ \u306e\u5024\u306e\u6b63\u8ca0\u306a\u3069\u3067\u76f4\u7dda\u306e\u5f62\u3092\u30a4\u30e1\u30fc\u30b8\u3092\u3067\u304d\u308b<\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>\u4eca\u56de\u306f\u3001\u4e00\u6b21\u95a2\u6570\u3068\u305d\u306e\u30b0\u30e9\u30d5\u306e\u304b\u304d\u65b9\u306b\u3064\u3044\u3066\u5b66\u7fd2\u3057\u3066\u304d\u307e\u3057\u305f\u3002<\/p>\n<p>\u6700\u521d\u306b\u3001\u30b0\u30e9\u30d5\u306e\u57fa\u672c\u3068\u3057\u3066\u300c\u6a2a\u8ef8\uff08 $x$ \u8ef8\uff09\u3068\u7e26\u8ef8\uff08 $y$ \u8ef8\uff09\u300d\u3084\u300c\u5ea7\u6a19\u306e\u898b\u65b9\u30fb\u66f8\u304d\u65b9\u300d\u3092\u304a\u3055\u3089\u3044\u3057\u307e\u3057\u305f\u3002<br \/>\n\u6b21\u306b\u3001\u4e2d1\u3067\u7fd2\u3063\u305f\u300c\u6bd4\u4f8b$ y = ax$ \u300d\u306e\u30b0\u30e9\u30d5\u3092\u5fa9\u7fd2\u3057\u3001\u4e00\u6b21\u95a2\u6570 $y = ax + b $\u306e\u30b0\u30e9\u30d5\u306e\u7279\u5fb4\u3092\u5b66\u3073\u307e\u3057\u305f\u3002\u4e00\u6b21\u95a2\u6570\u306e\u30b0\u30e9\u30d5\u3082\u76f4\u7dda\u3067\u3059\u304c\u3001\u539f\u70b9\u3092\u901a\u308b\u3068\u306f\u9650\u3089\u306a\u3044\u70b9\u304c\u30dd\u30a4\u30f3\u30c8\u3067\u3057\u305f\u306d\u3002<\/p>\n<p>\u30b0\u30e9\u30d5\u3092\u304b\u304f\u65b9\u6cd5\u3068\u3057\u3066\u306f\u3001<\/p>\n<ul>\n<li>$x = 0 $\u3084 $x = 1$ \u3092\u4ee3\u5165\u3057\u30662\u70b9\u3092\u6c42\u3081\u3066\u7d50\u3076\u65b9\u6cd5<\/li>\n<li>\u5207\u7247\u3068\u50be\u304d\u3092\u4f7f\u3063\u3066\u304b\u304f\u65b9\u6cd5<\/li>\n<\/ul>\n<p>\u306e2\u3064\u304c\u3042\u308a\u307e\u3057\u305f\u3002\u4e00\u6b21\u95a2\u6570\u306e\u5f0f\u3084\u554f\u984c\u306b\u5fdc\u3058\u3066\u4f7f\u3044\u3084\u3059\u3044\u65b9\u6cd5\u304c\u7570\u306a\u308a\u307e\u3059\u306e\u3067\u3001\u305d\u308c\u305e\u308c\u306e\u3084\u308a\u65b9\u3092\u899a\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u3055\u3089\u306b\u3001\u50be\u304d\u3084\u5207\u7247\u306e\u5024\u306b\u3088\u3063\u3066\u30b0\u30e9\u30d5\u306e\u5f62\u304c\u3069\u3046\u5909\u308f\u308b\u304b\u3001\u30b0\u30e9\u30d5\u306e\u5e73\u884c\u95a2\u4fc2\u306a\u3069\u3082\u5b66\u3073\u307e\u3057\u305f\u3002\u3053\u308c\u3089\u3082\u30c6\u30b9\u30c8\u3067\u51fa\u984c\u3055\u308c\u308b\u5185\u5bb9\u3067\u3059\u306e\u3067\u3001\u3057\u3063\u304b\u308a\u304a\u3055\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><strong>\u300c\u4e00\u6b21\u95a2\u6570\u306e\u5f0f\u3092\u898b\u3066\u30b0\u30e9\u30d5\u306e\u5f62\u304c\u30a4\u30e1\u30fc\u30b8\u3067\u304d\u308b\u300d<\/strong><br \/>\n<strong>\u300c\u30b0\u30e9\u30d5\u3092\u898b\u3066\u4e00\u6b21\u95a2\u6570\u306e\u5f0f\u304c\u308f\u304b\u308b\u300d<\/strong><\/p>\n<p>\u305d\u3093\u306a\u529b\u304c\u3064\u3044\u3066\u304f\u308b\u3068\u3001\u4e00\u6b21\u95a2\u6570\u306e\u30b0\u30e9\u30d5\u306e\u554f\u984c\u306b\u81ea\u4fe1\u3092\u3082\u3063\u3066\u697d\u3057\u304f\u53d6\u308a\u7d44\u3081\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uff11. \u30b0\u30e9\u30d5\u3068\u306f \u307e\u305a\u306f\u3001\u300c\u30b0\u30e9\u30d5\u300d\u3068\u306f\u4f55\u304b\u306b\u3064\u3044\u3066\u304a\u3055\u3089\u3044\u3057\u307e\u3057\u3087\u3046\u3002 \u30b0\u30e9\u30d5\u3068\u306f\u3001\u3042\u308b\u95a2\u4fc2\u3092\u56f3\u306b\u3057\u3066\u8868\u3057\u305f\u3082\u306e\u3067\u3059\u3002\u6570\u5b66\u3067\u306f\u30012\u3064\u306e\u6570$\uff08 x, y \uff09$\u306e\u95a2\u4fc2\u3092\u30b0\u30e9\u30d5\u3067\u8868\u3059\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002\u7279\u306b\u300c\u4e00\u6b21\u95a2\u6570\u300d\u306e\u5b66\u7fd2 [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":7629,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33],"tags":[],"class_list":{"0":"post-7742","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-point"},"_links":{"self":[{"href":"https:\/\/www.aphex-group.com\/blog\/wp-json\/wp\/v2\/posts\/7742","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.aphex-group.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.aphex-group.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.aphex-group.com\/blog\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/www.aphex-group.com\/blog\/wp-json\/wp\/v2\/comments?post=7742"}],"version-history":[{"count":12,"href":"https:\/\/www.aphex-group.com\/blog\/wp-json\/wp\/v2\/posts\/7742\/revisions"}],"predecessor-version":[{"id":7755,"href":"https:\/\/www.aphex-group.com\/blog\/wp-json\/wp\/v2\/posts\/7742\/revisions\/7755"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.aphex-group.com\/blog\/wp-json\/wp\/v2\/media\/7629"}],"wp:attachment":[{"href":"https:\/\/www.aphex-group.com\/blog\/wp-json\/wp\/v2\/media?parent=7742"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.aphex-group.com\/blog\/wp-json\/wp\/v2\/categories?post=7742"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.aphex-group.com\/blog\/wp-json\/wp\/v2\/tags?post=7742"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}