人教版八年级数学上册第十四章一次函数 新课标人教版八年级数学上第十四章中变量与函数、一次函数的测试...
\u4eba\u6559\u7248\u6570\u5b66\u516b\u5e74\u7ea7\u4e0a\u518c\u7b2c\u5341\u56db\u7ae0\u4e00\u6b21\u51fd\u6570\u77e5\u8bc6\u70b9\u3001\u91cd\u70b9\u9898\u578b\u3001\u5355\u5143\u6d4b\u8bd5\u6ca1\u6709
\u4e00\u6b21\u51fd\u6570\u5355\u5143\u6d4b\u8bd5\u9898
\u4e00\u3001\u5feb\u6765\u9009\u9009\uff0c\u76f8\u4fe1\u4f60\u4e00\u5b9a\u884c\uff08\u6bcf\u5c0f\u98983\u5206\uff0c\u517130\u5206\uff09
1\u3001\u4e00\u4e2a\u53d8\u5316\u8fc7\u7a0b\u4e2d\u6709\u4e24\u4e2a\u53d8\u91cf \u3001 \u5bf9\u4e8e \u6bcf\u53d6\u4e00\u4e2a\u503c\uff0c \u90fd\u4f1a\u6709\u552f\u4e00\u7684\u503c\u4e0e\u5b83\u5bf9\u5e94\uff0c\u90a3\u4e48\u6211\u4eec\u5c31\u8bf4 \u662f\u81ea\u53d8\u91cf\uff0c \u662f \u7684\u51fd\u6570.\u4e0b\u56fe\u4e2d\u8868\u793a\u51fd\u6570\u5173\u7cfb\u7684\u56fe\u8c61\u662f\uff08 \uff09
2\u3001\u51fd\u6570 \u4e2d\uff0c\u81ea\u53d8\u91cf \u7684\u53d6\u503c\u8303\u56f4\u5e94\u662f\uff08 \uff09
\u3000 \u3001 \u3001 \u3001 \u3001
\u30003\u3001\u4e0b\u5217\u51fd\u6570\u4e2d\uff0c \u662f \u7684\u4e00\u6b21\u51fd\u6570\u7684\u662f\uff08 \uff09
\u3001 \u3001 \u3001 \u3001
\u30004\u3001\u4e0b\u9762\u54ea\u4e2a\u70b9\u5728\u51fd\u6570 \u7684\u56fe\u8c61\u4e0a\uff08 \uff09
\u3001 \u3001 \u3001 \u3001
\u3000\u30005\u3001\u82e5\u628a\u4e00\u6b21\u51fd\u6570 \u5411\u4e0a\u5e73\u79fb3\u4e2a\u5355\u4f4d\u957f\u5ea6\uff0c\u5f97\u5230\u56fe\u8c61\u89e3\u6790\u5f0f\u662f( )
\u3001 \u3001 \u3001 \u3001
6\u3001\u51fd\u6570 \u7684\u56fe\u8c61\u5927\u81f4\u4f4d\u7f6e\u5e94\u662f\u4e0b\u56fe\u4e2d\u7684\uff08 \uff09
\u30007\u3001\u4e00\u6b21\u51fd\u6570 \u7684\u56fe\u8c61\u7ecf\u8fc7\u70b9\u548c\uff081\uff0c3\uff09\u548c\uff080\uff0c1\uff09\uff0c\u90a3\u4e48\u8fd9\u4e2a\u4e00\u6b21\u51fd\u6570\u662f\uff08 \uff09
\u3001 \u3001 \u3001 \u3001
8\u3001\u6c7d\u8f66\u5f00\u59cb\u884c\u9a76\u65f6\uff0c\u6cb9\u7bb1\u5185\u6709\u6cb940\u5347\uff0c\u5982\u679c\u6bcf\u5c0f\u65f6\u8017\u6cb95\u5347\uff0c\u5219\u6cb9\u7bb1\u5185\u4f59\u6cb9\u91cfy\uff08\u5347\uff09\u4e0e\u884c\u9a76\u65f6\u95f4t\uff08\u65f6\uff09\u7684\u51fd\u6570\u5173\u7cfb\u5f0f\u5e94\u4e3a\uff08 \uff09
\u3000 \u3001 \u3001 \u3001 \u3001
9\u3001\u67d0\u6559\u5e08\u5230\u4e00\u6751\u5be8\u8fdb\u884c\u5b66\u751f\u5165\u5b66\u52a8\u5458\u5de5\u4f5c\uff0c\u5f00\u59cb\u65f6\u9a91\u6469\u6258\u8f66\u5927\u7ea6\u7528\u4e8640\u5206\u949f\u7684\u65f6\u95f4\u8d70\u4e8620\u91cc\u8def\uff0c\u4f11\u606f10\u5206\u949f\u540e\uff0c\u53c8\u82b1\u8fd130\u5206\u949f\u7684\u65f6\u95f4\u5f92\u6b65\u8d70\u4e868\u91cc\u8def\uff0c\u65b9\u5230\u8fbe\u8be5\u6751.\u4e0b\u5217\u80fd\u8868\u793a\u8be5\u6559\u5e08\u884c\u8d70\u7684\u8def\u7a0bs\uff08\u91cc\uff09\u4e0e\u65f6\u95f4t\uff08\u5206\uff09\u7684\u51fd\u6570\u56fe\u8c61\u662f\uff08 \uff09
10\u3001\u5982\u679c\u76f4\u7ebf \u4e0e \u4ea4\u70b9\u5750\u6807\u4e3a\uff08a\uff0cb\uff09\uff0c\u5219 \u662f\u65b9\u7a0b\u7ec4_______\u7684\u89e3\uff08 \uff09
\u3001 \u3001 \u3001 \u3001
\u3000\u3000\u4e8c\u3001\u5feb\u6765\u586b\u586b\uff0c\u8fd9\u4e9b\u6d1e\u53e3\u96be\u4e0d\u5012\u4f60\uff08\u6bcf\u5c0f\u98983\u5206\uff0c\u517124\u5206\uff09.
11\u3001\u51fd\u6570 \u4e2d\uff0c\u5f53 \u65f6\uff0c\u5b83\u662f\u4e00\u6b21\u51fd\u6570\uff0c\u5f53 \u5b83\u662f\u6b63\u6bd4\u4f8b\u51fd\u6570.
12\u3001\u5c06\u76f4\u7ebf \u5f80\u4e0a\u5e73\u79fb3\u4e2a\u5355\u4f4d\u5f97\u5230\u7684\u4e00\u6b21\u51fd\u6570\u7684\u89e3\u6790\u5f0f\u662f .
13\u3001\u8981\u4f7f\u76f4\u7ebf \u7ecf\u8fc7\u4e8c\u3001\u4e00\u3001\u56db\u8c61\u9650\uff0c\u5219 0\uff0c 0.\uff08\u586b\u201c\uff1e\u201d\u201c\uff1c\u201d\uff1d\uff09
\u300014\u3001\u76f4\u7ebf \u4e0e \u8f74\u3001 \u8f74\u7684\u4ea4\u70b9\u5206\u522b\u4e3a\uff08\uff0d1\uff0c0\uff09\u3001\uff080\uff0c3\uff09\u5219\u8fd9\u6761\u76f4\u7ebf\u7684\u89e3\u6790\u5f0f\u4e3a .
15\u3001\u5df2\u77e5\u76f4\u7ebf \u4e2d\uff0c \u968f \u7684\u589e\u5927\u800c\u51cf\u5c0f\uff0c\u90a3\u4e48\u76f4\u7ebf \u7ecf\u8fc7 \u8c61\u9650.
16\u3001\u5df2\u77e5\u65b9\u7a0b \u7684\u89e3\u662f \uff0c\u5219\u76f4\u7ebf \u4e0e \u8f74\u7684\u4ea4\u70b9\u4e3a\uff08 \uff0c \uff09.
17\u3001\u5982\u56fe\uff0c\u662f\u51fd\u6570 \u7684\u56fe\u8c61\uff0c\u8981\u4f7f\u56fe\u8c61\u5904\u4e8e\u865a\u7ebf\u90e8\u5206\u65f6\u81ea\u53d8\u91cf \u7684\u53d6\u503c\u8303\u56f4\u662f .\u8fd9\u4e2a\u53d6\u503c\u8303\u56f4\u4e5f\u5c31\u662f\u4e0d\u7b49\u5f0f \u7684\u89e3\u96c6.
18\u3001\u5982\u56fe\uff0c\u76f4\u7ebf \u4e0e\u76f4\u7ebf \u76f8\u4ea4\u4e8e\u70b9P\uff0c\u5219P\u70b9\u7684\u5750\u6807\u662f\uff08 \uff0c \uff09.\u4e0d\u7b49\u5f0f \u7684\u89e3\u96c6\u4e3a
\u3000\u4e09\u3001\u8ba4\u771f\u89e3\u7b54\uff0c\u8981\u4ed4\u7ec6\u54df.\uff08\u517134\u5206\uff09
\u300019\u3001\uff0810\u5206\uff09\u6839\u636e\u4e0b\u5217\u6761\u4ef6\uff0c\u6c42\u51fa\u51fd\u6570\u89e3\u6790\u5f0f\uff1a
\uff081\uff09 \u4e0e \u6210\u6b63\u6bd4\u4f8b\uff0c\u4e14\u5f53 \u65f6\uff0c \uff1b
\u3000
\uff082\uff09\u4e00\u6b21\u51fd\u6570\u56fe\u8c61\u7ecf\u8fc7\u70b9\uff08-2\uff0c1\uff09\u548c\u70b9\uff084\uff0c-3\uff09.
\u3000
\u300020\u3001\uff0812\u5206\uff09\u6309\u8981\u6c42\u89e3\u7b54\u4e0b\u9762\u95ee\u9898\uff1a
\uff081\uff09\u5148\u586b\u4e0b\u8868\uff0c\u518d\u5728\u53f3\u8fb9\u540c\u4e00\u5750\u6807\u7cfb\u5185\u753b\u51fa\u5b83\u4eec\u7684\u51fd\u6570\u56fe\u8c61\uff1b
\u3000\u3000
\u3000\u3000\uff082\uff09 \u6c42\u51fa\u76f4\u7ebf \u4e0e\u76f4\u7ebf \u7684\u4ea4\u70b9\u5750\u6807\uff1b
\u3000\u3000\uff083\uff09\u6839\u636e\u56fe\u8c61\u6c42\u51fa\u4e0d\u7b49\u5f0f \u7684\u89e3\u96c6.
\u3000\u300021\u3001\uff0812\u5206\uff09\u5982\u56fe\uff0c\u6298\u7ebfABC\u662f\u5728\u67d0\u5e02\u4e58\u51fa\u79df\u8f66\u6240\u4ed8\u8f66\u8d39 \uff08\u5143\uff09\u4e0e\u884c\u8f66\u91cc\u7a0b \uff08km\uff09\u4e4b\u95f4\u7684\u51fd\u6570\u5173\u7cfb\u56fe\u8c61\uff0e
\u3000\u3000\uff081\uff09\u6839\u636e\u56fe\u8c61\uff0c\u5199\u51fa\u5f53 \u22653\u65f6\u8be5\u56fe\u8c61\u7684\u51fd\u6570\u5173\u7cfb\u5f0f\uff1b
\u3000\u3000\uff082\uff09\u67d0\u4eba\u4e58\u57502.5km\uff0c\u5e94\u4ed8\u591a\u5c11\u94b1\uff1f
\u3000\u3000\uff083\uff09\u67d0\u4eba\u4e58\u575013km\uff0c\u5e94\u4ed8\u591a\u5c11\u94b1\uff1f
\u3000\u3000\uff084\uff09\u82e5\u67d0\u4eba\u4ed8\u8f66\u8d3930.8\u5143\uff0c\u51fa\u79df\u8f66\u884c\u9a76\u4e86\u591a\u5c11\u5343\u7c73\uff1f
\u3000\u3000\u56db\u3001\u63a2\u7a76\u56ed\uff0812\u5206\uff09
\u3000\u300022\u3001A\u6821\u548cB\u6821\u5206\u522b\u5e93\u5b58\u6709\u7535\u811112\u53f0\u548c6\u53f0\uff0c\u73b0\u51b3\u5b9a\u652f\u63f4\u7ed9C\u682110\u53f0\u548cD\u68218\u53f0.\u5df2\u77e5\u4eceA\u6821\u8c03\u8fd0\u4e00\u53f0\u7535\u8111\u5230C\u6821\u548cD\u6821\u7684\u8fd0\u8d39\u5206\u522b\u4e3a40\u5143\u548c80\u5143\uff1b\u4eceB\u6821\u8c03\u8fd0\u4e00\u53f0\u7535\u8111\u5230C\u6821\u548cD\u6821\u7684\u8fd0\u8d39\u5206\u522b\u4e3a30\u5143\u548c50\u5143.
\u3000\u3000\uff081\uff09\u8bbeA\u6821\u8fd0\u5f80C\u6821\u7684\u7535\u8111\u4e3a \u53f0\uff0c\u5148\u4eff\u7167\u4e0b\u56fe\u586b\u7a7a\uff0c\u7136\u540e\u6c42\u603b\u8fd0\u8d39W\uff08\u5143\uff09\u5173\u4e8e \u7684\u51fd\u6570\u5173\u7cfb\u5f0f\uff1b
\u3000\u3000\uff082\uff09\u6c42\u51fa\u603b\u8fd0\u8d39\u6700\u4f4e\u7684\u8c03\u8fd0\u65b9\u6848\uff0c\u6700\u4f4e\u8fd0\u8d39\u662f\u591a\u5c11\uff1f
\u3000\u3000\u53c2\u8003\u7b54\u6848
\u3000\u3000\u4e00\u30011\u3001A\uff1b2\u3001C\uff1b3\u3001A\uff1b4\u3001D\uff1b5\u3001A\uff1b6\u3001C\uff1b7\u3001B\uff1b8\u3001D\uff1b9\u3001A\uff1b10\u3001D\u3002
\u3000\u4e8c\u300111\u3001 \u22601\uff0c \uff1d\uff0d1\uff1b12\u3001 \uff1b13\u3001 \uff0c \uff1b14\u3001 \uff1b15\u3001\u4e8c\u3001\u56db\uff1b16\u3001\uff08a,0\uff09\uff1b17\u3001 \uff0c \uff1b18\u3001\uff083\uff0c7\uff09\uff0c \u3002
\u3000\u4e09\u300119\u3001\uff081\uff09 \uff1b\uff082\uff09 \uff1b20\u3001\uff081\uff09\u7565\uff1b\uff082\uff09\uff082\uff0c2\uff09\uff0c\uff083\uff09 \uff1b21\u3001\uff081\uff09 \uff1b\uff082\uff09\u67d0\u4eba\u4e58\u57502.5km\uff0c\u5e94\u4ed87\u5143\uff1b\uff083\uff09\u67d0\u4eba\u4e58\u575013km\uff0c\u5e94\u4ed821\u5143\uff1b\uff084\uff09\u67d0\u4eba\u4ed8\u8f66\u8d3930.8\u5143\uff1b\u51fa\u79df\u8f66\u884c\u9a76\u4e8620\u5343\u7c73\u3002
\u3000\u3000\u56db\u300122\u3001\uff081\uff09\u586b\u7a7a\u7565\uff0c \uff1b\uff082\uff09\u6700\u4f4e\u8c03\u8fd0\u65b9\u6848\u662fA\u6821\u8fd0\u5f80C\u6821\u548cD\u6821\u5206\u522b\u4e3a10\u53f0\u548c2\u53f0\uff0cB\u6821\u8fd0\u5f80C\u6821\u548cD\u6821\u5206\u522b\u4e3a0\u53f0\u548c6\u53f0\u3002
一次函数是基础，如果基础没打好到了九年级学二次函数根本就是问题。
从最基础的先做起，不要贪多。一定要都巩固好。
看看例题 把书后的习题 用图的方式全画出来 你就很牛逼了
你要先看一下相关题目的解答方式然后自己去找何这类题相似的做一做看看会不会
这样一定可以学好
如果不会就去问问老师
一次函数的题,要多练,见`多了就不会感到难了.
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绛旓細绗崄鍥涚珷銆鏁村紡鐨勪箻娉曚笌鍥犲紡鍒嗚В 14.1 鏁村紡鐨勪箻娉 14.2 涔樻硶鍏紡 闃呰涓庢濊 鏉ㄨ緣涓夎 14.3 鍥犲紡鍒嗚В 鏁板娲诲姩 灏忕粨 澶嶄範棰14 绗崄浜旂珷銆鍒嗗紡 15.1 鍒嗗紡 15.2 鍒嗗紡鐨勮繍绠 闃呰涓庢濊 瀹瑰櫒涓殑姘磋兘鍊掑畬鍚 15.3 鍒嗗紡鏂圭▼ 鏁板娲诲姩 灏忕粨 澶嶄範棰15 閮ㄥ垎涓嫳鏂囪瘝姹囩储寮 浜烘暀鐗堝叓骞寸骇鏁板涓婂唽鐭ヨ瘑...
绛旓細浜烘暀鐗堝垵浜屾暟瀛︿笂涓嬪唽鐩綍濡備笅锛涓婂唽鐩綍锛氱鍗佷竴绔 涓夎褰 11.1 涓庝笁瑙掑舰鏈夊叧鐨勭嚎娈 11.2 涓庝笁瑙掑舰鏈夊叧鐨勮 11.3 澶氳竟褰㈠強鍏跺唴瑙掑拰 绗崄浜岀珷 鍏ㄧ瓑涓夎褰 12.1 鍏ㄧ瓑涓夎褰 12.2 涓夎褰㈠叏绛夌殑鍒ゅ畾 12.3 瑙掔殑骞冲垎绾跨殑鎬ц川 绗崄涓夌珷 杞村绉 13.1 杞村绉 13.2 鐢昏酱瀵圭О鍥惧舰 13.3 绛夎叞涓夎...
绛旓細y-1=kx x=-1 y=3甯﹀叆 k=-2 y=1-2x 褰搚=-7 x=4 -9鈮鈮1
绛旓細浜烘暀鐗堝叓骞寸骇鏁板涓婂唽鏁欐潗鐩綍 绗崄涓绔犮涓夎褰 11.1銆涓庝笁瑙掑舰鏈夊叧鐨勭嚎娈 淇℃伅鎶鏈簲鐢 鐢诲浘鎵捐寰 11.2 涓庝笁瑙掑舰鏈夊叧鐨勮 闃呰涓庢濊 涓轰粈涔堣璇佹槑 11.3 澶氳竟褰㈠強鍏跺唴瑙掑拰 鏁板娲诲姩 灏忕粨 澶嶄範棰11 绗崄浜岀珷銆鍏ㄧ瓑涓夎褰 12.1 鍏ㄧ瓑涓夎褰 12.2 涓夎褰㈠叏绛夌殑鍒ゅ畾 淇℃伅鎶鏈簲鐢 鎺㈢┒涓夎褰...
绛旓細=-(5x²-4y²)²=-(25x鐨4娆℃柟-40x²y²+16y鐨4娆℃柟)=-25x鐨4娆℃柟+40x²y²-16y鐨4娆℃柟
绛旓細鍏勾绾т笂鍐屾暟瀛鏁欐潗鐩綍浜烘暀鐗 绗崄涓绔犮涓夎褰 11.1銆涓庝笁瑙掑舰鏈夊叧鐨勭嚎娈 淇℃伅鎶鏈簲鐢 鐢诲浘鎵捐寰 11.2 涓庝笁瑙掑舰鏈夊叧鐨勮 闃呰涓庢濊 涓轰粈涔堣璇佹槑 11.3 澶氳竟褰㈠強鍏跺唴瑙掑拰 鏁板娲诲姩 灏忕粨 澶嶄範棰11 绗崄浜岀珷銆鍏ㄧ瓑涓夎褰 12.1 鍏ㄧ瓑涓夎褰 12.2 涓夎褰㈠叏绛夌殑鍒ゅ畾 淇℃伅鎶鏈簲鐢 鎺㈢┒涓夎褰...
