名校
解题方法
1 . 已知直线l:
.
(1)求证:不论m为何实数,直线l恒过一定点M;
(2)若直线l与直线
交于点P,与直线
交于点Q,且线段PQ的中点是(1)中的定点M,求直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80ad056647bbe030ed8aca286ce314f0.png)
(1)求证:不论m为何实数,直线l恒过一定点M;
(2)若直线l与直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3735d94312e4c8d78f4765b62d033265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3cb6a765297b236597a80214c0a993d.png)
您最近一年使用:0次
名校
2 . 设直线
.
(1)若直线
交于同一点,求
的值;
(2)设直线
过点
,若
被直线
截得的线段恰好被点
平分,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6675fdaa887602bd2a0178ea6927c46.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8801df26d9cb76bc289b64a3a26902e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92a0d4c22734cac795de1e5c5fbefa87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df229dc012be81d12520af9990f4d250.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2017-12-31更新
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1219次组卷
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4卷引用:辽宁省沈阳市第一二〇中学2021-2022学年高二上学期期中考试数学试题