题目内容
如图,已知



图像的两个交点

(1)求反比例函数和一次函数的解析式;
(2)求直线




解:(1)∵
在反比例函数
上.
∴
∴
·························2分
∵
也在双曲线上.
∴
∴
···························3分
又∵
,
都在
上.
∴
∴
∴
··························6分
(2)令
则
∴
∴
∴
=
.解析:
略


∴


∴

∵

∴

∴

又∵



∴


∴

(2)令




∴



略

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