题目

已知：如图，在平面直角坐标系中，直线AB分别与轴交于点B、A，与反比例函数的图象分别交于点C、D，轴于点E，．(1). 求该反比例函数的解析式；(2). （4分）求直线AB的解析式 答案：解：（1），．轴于点．，．··································································· （1分）点的坐标为．··················································································· （2分）设反比例函数的解析式为．将点的坐标代入，得，．··········································································································· （3分）该反比例函数的解析式为．··································································· （4分）2，．························································································ （5分），，．························································································ （6分）设直线的解析式为．将点的坐标分别代入，得解得······································································································· （7分）       直线的解析式为． …………（8分）解析:略

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