22-23高二下·上海浦东新·开学考试
名校
解题方法
1 . 已知直线
,直线
,点
,
为
和
的交点.求分别满足下列条件要求的过点
的直线方程.
(1)平行于直线
.
(2)点
到所求直线的距离最大.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be08fd69fbf524d9355ec22402179f53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dab13543ac1b7aa9fe583f3b229241b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c62f236e5e8352ad0d65c1570747d9b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(1)平行于直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f281814a940820e52ec332185871e22f.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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