有正比例，反比例，一次，二次，指数，对数，三角，幂函数。还有什么函数？上述这些函数有什么区别？
\u54ea\u4f4d\u5927\u795e\u5e2e\u5fd9\uff0c\u5341\u4e00\u4e2a\u51fd\u6570\u7684\u516b\u4e2a\u6027\u8d28\u6c42\u603b\u7ed3\uff08\u5927\u6982\u662f\u6b63\u6bd4\u4f8b\uff0c\u53cd\u6bd4\u4f8b\uff0c\u4e00\u6b21\uff0c\u4e8c\u6b21\uff0c\u5e42\u51fd\u6570\uff0c\u6307\u6570\uff0c\u5bf9\u6570\uff0c\u5bf9\u8fd9\u662f\u521d\u4e2d\u9ad8\u4e2d\u6570\u5b66\u6240\u6709\u51fd\u6570\u7684\u6027\u8d28 \u56fe\u50cf
1.\u4e00\u6b21\u51fd\u6570(\u5305\u62ec\u6b63\u6bd4\u4f8b\u51fd\u6570) \u6700\u7b80\u5355\u6700\u5e38\u89c1\u7684\u51fd\u6570\uff0c\u5728\u5e73\u9762\u76f4\u89d2\u5750\u6807\u7cfb\u4e0a\u7684\u56fe\u8c61\u4e3a\u76f4\u7ebf\u3002
\u5b9a\u4e49\u57df\uff08\u4e0b\u9762\u6ca1\u6709\u8bf4\u660e\u7684\u8bdd\uff0c\u90fd\u662f\u5728\u65e0\u7279\u6b8a\u8981\u6c42\u60c5\u51b5\u4e0b\u7684\u5b9a\u4e49\u57df\uff09\uff1aR
\u503c\u57df\uff1aR
\u5947\u5076\u6027\uff1a\u65e0
\u5468\u671f\u6027\uff1a\u65e0
\u5e73\u9762\u76f4\u89d2\u5750\u6807\u7cfb\u89e3\u6790\u5f0f(\u4e0b\u7b80\u79f0\u89e3\u6790\u5f0f):
\u2460ax+by+c=0[\u4e00\u822c\u5f0f]
\u2461y=kx+b[\u659c\u622a\u5f0f]
\uff08k\u4e3a\u76f4\u7ebf\u659c\u7387\uff0cb\u4e3a\u76f4\u7ebf\u7eb5\u622a\u8ddd\uff0c\u6b63\u6bd4\u4f8b\u51fd\u6570b=0\uff09
\u2462y-y1=k(x-x1)[\u70b9\u659c\u5f0f]
\uff08k\u4e3a\u76f4\u7ebf\u659c\u7387,(x1,y1)\u4e3a\u8be5\u76f4\u7ebf\u6240\u8fc7\u7684\u4e00\u4e2a\u70b9\uff09
\u2463\uff08y-y1\uff09/(y2-y1)=(x-x1)/(x2-x1)[\u4e24\u70b9\u5f0f]
\uff08\uff08x1,y1\uff09\u4e0e\uff08x2,y2\uff09\u4e3a\u76f4\u7ebf\u4e0a\u7684\u4e24\u70b9\uff09
\u2464x/a-y/b=0[\u622a\u8ddd\u5f0f]
\uff08a\u3001b\u5206\u522b\u4e3a\u76f4\u7ebf\u5728x\u3001y\u8f74\u4e0a\u7684\u622a\u8ddd\uff09
\u89e3\u6790\u5f0f\u8868\u8fbe\u5c40\u9650\u6027\uff1a
\u2460\u6240\u9700\u6761\u4ef6\u8f83\u591a\uff083\u4e2a\uff09\uff1b
\u2461\u3001\u2462\u4e0d\u80fd\u8868\u8fbe\u6ca1\u6709\u659c\u7387\u7684\u76f4\u7ebf\uff08\u5e73\u884c\u4e8ex\u8f74\u7684\u76f4\u7ebf\uff09\uff1b
\u2463\u53c2\u6570\u8f83\u591a\uff0c\u8ba1\u7b97\u8fc7\u4e8e\u70e6\u7410\uff1b
\u2464\u4e0d\u80fd\u8868\u8fbe\u5e73\u884c\u4e8e\u5750\u6807\u8f74\u7684\u76f4\u7ebf\u548c\u8fc7\u5706\u70b9\u7684\u76f4\u7ebf\u3002
\u503e\u659c\u89d2\uff1ax\u8f74\u5230\u76f4\u7ebf\u7684\u89d2\uff08\u76f4\u7ebf\u4e0ex\u8f74\u6b63\u65b9\u5411\u6240\u6210\u7684\u89d2\uff09\u79f0\u4e3a\u76f4\u7ebf\u7684\u503e\u659c \u89d2\u3002\u8bbe\u4e00\u76f4\u7ebf\u7684\u503e\u659c\u89d2\u4e3aa\uff0c\u5219\u8be5\u76f4\u7ebf\u7684\u659c\u7387k=tg(a)\u3002
2.\u4e8c\u6b21\u51fd\u6570
\u9898\u76ee\u4e2d\u5e38\u89c1\u7684\u51fd\u6570\uff0c\u5728\u5e73\u9762\u76f4\u89d2\u5750\u6807\u7cfb\u4e0a\u7684\u56fe\u8c61\u662f\u4e00\u6761\u5bf9\u79f0\u8f74\u4e0ey\u8f74\u5e73\u884c\u7684\u629b\u7269\u7ebf\u3002
\u5b9a\u4e49\u57df\uff1aR
\u503c\u57df\uff1a\uff08\u5bf9\u5e94\u89e3\u6790\u5f0f\uff0c\u4e14\u53ea\u8ba8\u8bbaa\u5927\u4e8e0\u7684\u60c5\u51b5\uff0ca\u5c0f\u4e8e0\u7684\u60c5\u51b5\u8bf7\u8bfb\u8005\u81ea\u884c\u63a8\u65ad\uff09\u2460[(4ac-b^2)/4a\uff0c\u6b63\u65e0\u7a77\uff09\uff1b\u2461[t\uff0c\u6b63\u65e0\u7a77\uff09
\u5947\u5076\u6027\uff1a\u5076\u51fd\u6570
\u5468\u671f\u6027\uff1a\u65e0
\u89e3\u6790\u5f0f\uff1a
\u2460y=ax^2+bx+c[\u4e00\u822c\u5f0f]
\u2474a\u22600
\u2475a\uff1e0\uff0c\u5219\u629b\u7269\u7ebf\u5f00\u53e3\u671d\u4e0a\uff1ba\uff1c0\uff0c\u5219\u629b\u7269\u7ebf\u5f00\u53e3\u671d\u4e0b\uff1b
\u2476\u6781\u503c\u70b9\uff1a\uff08-b/2a\uff0c(4ac-b^2)/4a\uff09\uff1b
\u2477\u0394=b^2-4ac,
\u0394\uff1e0\uff0c\u56fe\u8c61\u4e0ex\u8f74\u4ea4\u4e8e\u4e24\u70b9\uff1a
\uff08[-b+\u221a\u0394]/2a\uff0c0\uff09\u548c\uff08[-b+\u221a\u0394]/2a\uff0c0\uff09\uff1b
\u0394\uff1d0\uff0c\u56fe\u8c61\u4e0ex\u8f74\u4ea4\u4e8e\u4e00\u70b9\uff1a
\uff08-b/2a\uff0c0\uff09\uff1b
\u0394\uff1c0\uff0c\u56fe\u8c61\u4e0ex\u8f74\u65e0\u4ea4\u70b9\uff1b
\u2461y=a(x-h)^2+t[\u914d\u65b9\u5f0f]
\u6b64\u65f6\uff0c\u5bf9\u5e94\u6781\u503c\u70b9\u4e3a\uff08h\uff0ct\uff09\uff0c\u5176\u4e2dh=-b/2a\uff0ct=(4ac-b^2)/4a\uff09\uff1b
3.\u53cd\u6bd4\u4f8b\u51fd\u6570
\u5728\u5e73\u9762\u76f4\u89d2\u5750\u6807\u7cfb\u4e0a\u7684\u56fe\u8c61\u4e3a\u53cc\u66f2\u7ebf\u3002
\u5b9a\u4e49\u57df\uff1a\uff08\u8d1f\u65e0\u7a77\uff0c0\uff09\u222a\uff080\uff0c\u6b63\u65e0\u7a77\uff09
\u503c\u57df\uff1a\uff08\u8d1f\u65e0\u7a77\uff0c0\uff09\u222a\uff080\uff0c\u6b63\u65e0\u7a77\uff09
\u5947\u5076\u6027\uff1a\u5947\u51fd\u6570
\u5468\u671f\u6027\uff1a\u65e0
\u89e3\u6790\u5f0f\uff1ay=1/x
4.\u5e42\u51fd\u6570
y=x^a
\u2460y=x^3
\u5b9a\u4e49\u57df\uff1aR
\u503c\u57df\uff1aR
\u5947\u5076\u6027\uff1a\u5947\u51fd\u6570
\u5468\u671f\u6027\uff1a\u65e0
\u56fe\u8c61\u7c7b\u4f3c\u4e8e\u5c06\u4e00\u4e2a\u8fc7\u5706\u70b9\u7684\u4e8c\u6b21\u51fd\u6570\u7684\u7b2c\u56db\u533a\u95f4\u90e8\u5206\u5173\u4e8ex\u8f74\u4f5c\u8f74\u5bf9\u79f0
\u540e\u5f97\u5230\u7684\u56fe\u8c61\uff08\u7c7b\u6bd4\uff0c\u8fd9\u4e2a\u65b9\u6cd5\u4e0d\u80fd\u5f97\u5230\u4e09\u6b21\u51fd\u6570\u56fe\u8c61\uff09
\u2461y=x^(1/2)
\u5b9a\u4e49\u57df\uff1a[0\uff0c\u6b63\u65e0\u7a77\uff09
\u503c\u57df\uff1a[0\uff0c\u6b63\u65e0\u7a77\uff09
\u5947\u5076\u6027\uff1a\u65e0\uff08\u5373\u975e\u5947\u975e\u5076\uff09
\u5468\u671f\u6027\uff1a\u65e0
\u56fe\u8c61\u7c7b\u4f3c\u4e8e\u5c06\u4e00\u4e2a\u8fc7\u5706\u70b9\u7684\u4e8c\u6b21\u51fd\u6570\u4ee5\u539f\u70b9\u4e3a\u65cb\u8f6c\u4e2d\u5fc3\uff0c\u987a\u65f6\u9488\u65cb\u8f6c
90\u00b0\uff0c\u518d\u53bb\u6389y\u8f74\u4e0b\u65b9\u90e8\u5206\u5f97\u5230\u7684\u56fe\u8c61\uff08\u7c7b\u6bd4\uff0c\u8fd9\u4e2a\u65b9\u6cd5\u4e0d\u80fd\u5f97\u5230\u4e09\u6b21
\u51fd\u6570\u56fe\u8c61\uff09
5.\u6307\u6570\u51fd\u6570
\u5728\u5e73\u9762\u76f4\u89d2\u5750\u6807\u7cfb\u4e0a\u7684\u56fe\u8c61\uff08\u592a\u96be\u63cf\u8ff0\u4e86\uff0c\u8bf4\u4e00\u4e0b\u6027\u8d28\u5427\u2026\u2026\uff09
\u6052\u8fc7\u70b9\uff080\uff0c1\uff09\u3002\u8054\u7cfb\u89e3\u6790\u5f0f\uff0c\u82e5a\uff1e1\u5219\u51fd\u6570\u5728\u5b9a\u4e49\u57df\u4e0a\u5355\u8c03\u589e\uff1b\u82e50\uff1ca\uff1c1 \u5219\u51fd\u6570\u5728\u5b9a\u4e49\u57df\u4e0a\u5355\u8c03\u51cf\u3002
\u5b9a\u4e49\u57df\uff1aR
\u503c\u57df\uff1a\uff080\uff0c\u6b63\u65e0\u7a77\uff09
\u5947\u5076\u6027\uff1a\u65e0
\u5468\u671f\u6027\uff1a\u65e0
\u89e3\u6790\u5f0f\uff1ay=a^x
a\uff1e0
\u6027\u8d28\uff1a\u4e0e\u5bf9\u6570\u51fd\u6570y=log(a)x\u4e92\u4e3a\u53cd\u51fd\u6570\u3002
*\u5bf9\u6570\u8868\u8fbe\uff1alog(a)x\u8868\u793a\u4ee5a\u4e3a\u5e95\u7684x\u7684\u5bf9\u6570\u3002
6.\u5bf9\u6570\u51fd\u6570
\u5728\u5b9a\u4e49\u57df\u4e0a\u7684\u56fe\u8c61\u4e0e\u5bf9\u5e94\u7684\u6307\u6570\u51fd\u6570\uff08\u8be5\u5bf9\u6570\u51fd\u6570\u7684\u53cd\u51fd\u6570\uff09\u7684\u56fe\u8c61\u5173\u4e8e\u76f4\u7ebfy=x\u8f74\u5bf9\u79f0\u3002
\u6052\u8fc7\u5b9a\u70b9\uff081\uff0c0\uff09\u3002\u8054\u7cfb\u89e3\u6790\u5f0f\uff0c\u82e5a\uff1e1\u5219\u51fd\u6570\u5728\u5b9a\u4e49\u57df\u4e0a\u5355\u8c03\u589e\uff1b\u82e50\uff1ca\uff1c1 \u5219\u51fd\u6570\u5728\u5b9a\u4e49\u57df\u4e0a\u5355\u8c03\u51cf\u3002
\u5b9a\u4e49\u57df\uff1a\uff080\uff0c\u6b63\u65e0\u7a77\uff09
\u503c\u57df\uff1aR
\u5947\u5076\u6027\uff1a\u65e0
\u5468\u671f\u6027\uff1a\u65e0
\u89e3\u6790\u5f0f\uff1ay=log(a)x
a\uff1e0
\u6027\u8d28\uff1a\u4e0e\u5bf9\u6570\u51fd\u6570y=a^x\u4e92\u4e3a\u53cd\u51fd\u6570\u3002
7.\u4e09\u89d2\u51fd\u6570
\u2474\u6b63\u5f26\u51fd\u6570\uff1ay=sinx
\u56fe\u8c61\u4e3a\u6b63\u5f26\u66f2\u7ebf\uff08\u4e00\u79cd\u6ce2\u6d6a\u7ebf\uff0c\u662f\u6240\u6709\u66f2\u7ebf\u7684\u57fa\u7840\uff09
\u5b9a\u4e49\u57df\uff1aR
\u503c\u57df\uff1a[-1\uff0c1]
\u5947\u5076\u6027\uff1a\u5947\u51fd\u6570
\u5468\u671f\u6027\uff1a\u6700\u5c0f\u6b63\u5468\u671f\u4e3a2\u03c0
\u5bf9\u79f0\u8f74\uff1a\u76f4\u7ebfx=k\u03c0/2 (k\u2208Z\uff09
\u4e2d\u5fc3\u5bf9\u79f0\u70b9\uff1a\u4e0ex\u8f74\u7684\u4ea4\u70b9\uff1a\uff08k\u03c0\uff0c0\uff09(k\u2208Z\uff09
\u2475\u4f59\u5f26\u51fd\u6570\uff1ay=cosx
\u56fe\u8c61\u4e3a\u6b63\u5f26\u66f2\u7ebf\uff0c\u7531\u6b63\u5f26\u51fd\u6570\u7684\u56fe\u8c61\u5411\u5de6\u5e73\u79fb\u03c0/2\u4e2a\u5355\u4f4d\uff08\u6700\u5c0f\u5e73\u79fb\u91cf\uff09\u6240\u5f97\u3002
\u5b9a\u4e49\u57df\uff1aR
\u503c\u57df\uff1a[-1\uff0c1]
\u5947\u5076\u6027\uff1a\u5076\u51fd\u6570
\u5468\u671f\u6027\uff1a\u6700\u5c0f\u6b63\u5468\u671f\u4e3a2\u03c0
\u5bf9\u79f0\u8f74\uff1a\u76f4\u7ebfx=k\u03c0 (k\u2208Z\uff09
\u4e2d\u5fc3\u5bf9\u79f0\u70b9\uff1a\u4e0ex\u8f74\u7684\u4ea4\u70b9\uff1a\uff08\u03c0/2+k\u03c0\uff0c0\uff09(k\u2208Z\uff09
\u2476\u6b63\u5207\u51fd\u6570\uff1ay=tg x
\u56fe\u8c61\u7684\u6bcf\u4e2a\u5468\u671f\u5355\u4f4d\u5f88\u50cf\u662f\u4e09\u6b21\u51fd\u6570\uff0c\u5f88\u591a\u4e2a\uff0c\u5747\u5300\u5206\u5e03\u5728x\u8f74\u4e0a\u3002
\u5b9a\u4e49\u57df\uff1a{x\u2502x\u2260\u03c0/2+k\u03c0}
\u503c\u57df\uff1aR
\u5947\u5076\u6027\uff1a\u5947\u51fd\u6570
\u5468\u671f\u6027\uff1a\u6700\u5c0f\u6b63\u5468\u671f\u4e3a\u03c0
\u5bf9\u79f0\u8f74\uff1a\u65e0
\u4e2d\u5fc3\u5bf9\u79f0\u70b9\uff1a\u4e0ex\u8f74\u7684\u4ea4\u70b9\uff1a\uff08k\u03c0\uff0c0\uff09(k\u2208Z\uff09\u3002
*\u4e09\u89d2\u51fd\u6570\u7684\u6027\u8d28\u7565\u4e86\uff0c\u592a\u591a\uff0c\u5149\u516c\u5f0f\u5c31\u4e0d\u6b62\u5343\u4e2a\u3002\u53e6\u5916\uff0c\u4e09\u89d2\u51fd\u6570\u7684\u56fe\u8c61\u5e73\u79fb\u3001\u62c9\u4f38\u53d8\u5316\uff0c\u5728\u56fe\u8c61\u5e73\u79fb\u5185\u5bb9\u4e2d\u8bf4\u5f97\u5f88\u6e05\u695a\uff08\u4e0d\u5728\u8fd9\u91cc\uff0c\u5728\u6559\u6750\u91cc\uff09\u6211\u5c31\u4e0d\u591a\u8bf4\u4e86\u3002
\u6b63\u6bd4\u4f8b\u51fd\u6570,\u53cd\u6bd4\u4f8b\u51fd\u6570,\u4e00\u6b21\u51fd\u6570,\u4e8c\u6b21\u51fd\u6570,\u6307\u6570\u51fd\u6570,\u5bf9\u6570\u51fd\u6570,\u5e42\u51fd\u6570\u3001\u516d\u79cd\u4e09\u89d2\u51fd\u6570,\u53cd\u4e09\u89d2\u51fd\u6570
正比例函数就是关于原点对称的直线，反比例函数是跟原点相对的两个抛物线，一次函数是直线，二次是抛物线，指数函数可以转化为对数函数，它们是相对的，三角函数就是根据三角形的三边算出sin . cos. sec. tan. cot 的值，幂函数就是开方绛旓細涓娆鍑芥暟,姝ｆ瘮渚鍑芥暟,浜屾鍑芥暟,鍙嶆瘮渚鍑芥暟鐨勬ц川? 2涓洖绛 #鐑# 銆愬府甯洟銆戝ぇ瀛︾敓涓撳満,鍙幏鐧惧害瀹炰範鏈轰細! 鍖垮悕鐢ㄦ埛 2013-12-04 灞曞紑鍏ㄩ儴 鎴戜篃鏄珮涓鐨...CHEER YOU UP ~~涓銆佺悊瑙ｄ簩娆″嚱鏁扮殑鍐呮兜鍙婃湰璐 . 浜屾鍑芥暟 y=ax2 + bx + c ( a 鈮 0 , a 銆 b 銆 c 鏄父鏁)涓惈鏈変袱涓彉閲 x...
绛旓細涓娆鍑芥暟浣滃浘,涓鑸彇涓や釜鐐癸紱浜屾鍑芥暟浣滃浘,涓鑸彇浜斾釜鐐,鍏朵腑鏈変竴涓槸椤剁偣,鍏朵綑鐨勫洓涓偣,鍒嗗埆鏈変袱瀵规槸鍏充簬瀵圭О杞村绉扮殑鐐癸紱鍙嶆瘮渚鍑芥暟浣滃浘,姣忎竴涓垎鏀氬父鍙栧洓涓偣锛姝ｆ瘮渚鍑芥暟浣滃浘,鐢变簬鍏跺浘璞￠兘杩囧師鐐,涓鑸啀闄ゅ師鐐瑰鐨勫彟涓涓偣鍗冲彲锛
绛旓細鍑芥暟鍚戝乏绉诲姩d(d>0)涓崟浣嶏紝瑙ｆ瀽寮忎负y=a(x+b/2a+d)^2+(4ac-b^2)/4a,鍚戝彸灏辨槸鍑 鍑芥暟鍚戜笂绉诲姩d(d>0)涓崟浣嶏紝瑙ｆ瀽寮忎负y=a(x+b/2a)^2+(4ac-b^2)/4a+d,鍚戜笅灏辨槸鍑 姝ｆ瘮渚鍑芥暟涓鍙嶆瘮渚鍑芥暟 褰㈠y=kx(k涓哄父鏁帮紝涓攌涓嶇瓑浜0锛夛紝y灏卞彨鍋歺鐨勬姣斾緥鍑芥暟.鍥捐薄鍋氭硶:1.甯﹀畾绯绘暟 2...
绛旓細鍑芥暟鍚戝乏绉诲姩d(d>0)涓崟浣嶏紝瑙ｆ瀽寮忎负y=a(x+b/2a+d)^2+(4ac-b^2)/4a,鍚戝彸灏辨槸鍑 鍑芥暟鍚戜笂绉诲姩d(d>0)涓崟浣嶏紝瑙ｆ瀽寮忎负y=a(x+b/2a)^2+(4ac-b^2)/4a+d,鍚戜笅灏辨槸鍑 姝ｆ瘮渚鍑芥暟涓鍙嶆瘮渚鍑芥暟 褰㈠y=kx(k涓哄父鏁帮紝涓攌涓嶇瓑浜0锛夛紝y灏卞彨鍋歺鐨勬姣斾緥鍑芥暟.鍥捐薄鍋氭硶:1.甯﹀畾绯绘暟 2...
绛旓細鑷彉閲弜鍜屽洜鍙橀噺y鏈夊涓嬪叧绯:y=kx+b鍒欐鏃剁Оy鏄痻鐨涓娆鍑芥暟銆傜壒鍒湴,褰揵=0鏃,y鏄痻鐨勬姣斾緥鍑芥暟銆傚嵆:y=kx (k涓哄父鏁,k鈮0)浜屻佷竴娆″嚱鏁扮殑鎬ц川:1.y鐨勫彉鍖栧间笌瀵瑰簲鐨剎鐨勫彉鍖栧兼垚姝ｆ瘮渚,姣斿间负k鍗:y=kx+b (k涓轰换鎰忎笉涓洪浂鐨勫疄鏁 b鍙栦换浣曞疄鏁)2.褰搙=0鏃,b涓哄嚱鏁板湪y杞翠笂鐨勬埅璺濄備笁銆佷竴娆″嚱鏁扮殑...
绛旓細7.y=x^2+1/x^2+3>=2+3=5,褰搙^2=1鏃跺彇绛夊彿锛屸埓鍏舵渶灏忓=4锛屾鏃秞=鍦1.8.f(-3.2)=f(0.8)=0.8.13.y=3+2x-x^2=-(x-1)^2+4 鍦╗0,3]涓婄殑鏈澶у兼槸4锛屾渶灏忓兼槸0.17.鐐(x,y)鍏充簬x=1鐨勫绉扮偣鏄紙2-x,y),鈭磞=x^2+2x-1=(1+x)^2-2,鍏充簬x=1瀵圭О鐨勫嚱鏁...
绛旓細3銆姝ｆ瘮渚鍑芥暟瑙ｆ瀽寮忕殑纭畾 纭畾涓涓姣斾緥鍑芥暟锛屽氨鏄纭畾姝ｆ瘮渚嬪嚱鏁板畾涔夊紡y=kx(k鈮0)涓殑甯告暟k锛屽叾鍩烘湰姝ラ鏄細锛1锛夎鍑哄惈鏈夊緟瀹氱郴鏁扮殑鍑芥暟瑙ｆ瀽寮弝=kx(k鈮0)锛涳紙2锛夋妸宸茬煡鏉′欢锛堣嚜鍙橀噺涓庡嚱鏁扮殑瀵瑰簲鍊硷級浠ｅ叆瑙ｆ瀽寮忥紝寰楀埌鍏充簬绯绘暟k鐨勪竴鍏涓娆鏂圭▼锛涳紙3锛夎В鏂圭▼锛屾眰鍑哄緟瀹氱郴鏁発锛涳紙4锛夊皢姹...
绛旓細褰搆锛0鏃讹紝鍥惧儚缁忚繃涓銆佷笁璞￠檺锛寉闅忕潃x鐨勫澶ц屽澶э紱褰搆锛0鏃讹紝鍥惧儚缁忚繃浜屻佸洓璞￠檺锛寉闅忕潃x鐨勫澶ц屽噺灏忋俠>0鐩寸嚎涓嶻杞翠氦浜庢鍗婅酱锛宐<0锛岀洿绾夸笌Y杞翠氦浜庤礋鍗婅酱銆備竴鑸湴锛屽舰濡俌=K/X锛坘涓哄父鏁帮紝锛夌殑鍑芥暟绉颁负鍙嶆瘮渚嬪嚱鏁锛屽弽姣斾緥鍑芥暟鐨勬ц川锛屽綋K>0鏃讹紝鍑芥暟鍥惧儚鐨勪袱涓垎鏀垎鍒湪绗竴銆佺涓...
绛旓細涓娆鍑芥暟浣滃浘,涓鑸彇涓や釜鐐癸紱浜屾鍑芥暟浣滃浘,涓鑸彇浜斾釜鐐,鍏朵腑鏈変竴涓槸椤剁偣,鍏朵綑鐨勫洓涓偣,鍒嗗埆鏈変袱瀵规槸鍏充簬瀵圭О杞村绉扮殑鐐癸紱鍙嶆瘮渚鍑芥暟浣滃浘,姣忎竴涓垎鏀氬父鍙栧洓涓偣锛姝ｆ瘮渚鍑芥暟浣滃浘,鐢变簬鍏跺浘璞￠兘杩囧師鐐,涓鑸啀闄ゅ師鐐瑰鐨勫彟涓涓偣鍗冲彲锛
绛旓細(2)鎻忕偣;(3)杩炵嚎,鍙互浣滃嚭涓娆鍑芥暟鐨勫浘鍍忊斺斾竴鏉＄洿绾裤傚洜姝,浣滀竴娆″嚱鏁扮殑鍥惧儚鍙渶鐭ラ亾2鐐,骞惰繛鎴愮洿绾垮嵆鍙(閫氬父鎵惧嚱鏁板浘鍍忎笌x杞村拰y杞寸殑浜ょ偣) 2.鎬ц川:(1)鍦ㄤ竴娆″嚱鏁颁笂鐨勪换鎰忎竴鐐筆(x,y),閮芥弧瓒崇瓑寮:y=kx+b銆(2)涓娆″嚱鏁颁笌y杞翠氦鐐圭殑鍧愭爣鎬绘槸(0,b),涓巟杞存绘槸浜や簬(-b/k,0)姝ｆ瘮渚鍑芥暟鐨勫浘鍍忔...
