题目内容
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).求直线AB的解析式
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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如图，在平面直角坐标系中，直
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