名校
1 . (1)已知直线l过点
,它的一个方向向量为
.
①求直线l的方程;
②一组直线
,
,
,
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b296d4b725e1f2f64006acc341c5be16.png)
都与直线l平行,它们到直线l的距离依次为d,
,
,
,
,
(
),且直线
恰好经过原点,试用n表示d的关系式,并求出直线
的方程(用n、i表示);
(2)在坐标平面上,是否存在一个含有无穷多条直线
,
,
,
,
的直线簇,使它同时满足以下三个条件:①点
;②
,其中
是直线
的斜率,
和
分别为直线
在x轴和y轴上的截距;③![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c08e02442990bfe60a716268b05d813.png)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ce347708f4a80e748d55a3ea0e9a4ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/815bd3d2e51a8e2bacbd5ac89338b2ad.png)
①求直线l的方程;
②一组直线
![](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/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c7c5e7bd6bac51402ffa04b4144ec78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b296d4b725e1f2f64006acc341c5be16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5bc2b05dc79b18ecb4ac3f9b5c492d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57124599d0a72bf788f08ce442a85600.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724a6337b5a90dec21e4c492cba4e1a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0e43b111af6a4599ed3da25ff08dfb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ce64685821c3e55c07f151996ca8c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c7c5e7bd6bac51402ffa04b4144ec78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9d9c31eedf766d5a46ba973ebd9b37a.png)
(2)在坐标平面上,是否存在一个含有无穷多条直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/172722d11ea7e01411fa06dbb82f46ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fbd49bf20f987c05b4d36e31549075c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5a2d3cd8e283ae9d04bee5ab2e0895b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8b40053ac4eac0c835c733924a0ad41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4c62731e249e27fa0fad4d64fec7dd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/786bb10f13fc1f72b68e685d2abb20ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/388ff911fd5c0cf97ef7303a9d5c87a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5a2d3cd8e283ae9d04bee5ab2e0895b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c08e02442990bfe60a716268b05d813.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5bc2b05dc79b18ecb4ac3f9b5c492d4.png)
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2019-12-11更新
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5卷引用:专题4.1 坐标平面上的直线【压轴题型专项训练】-2020-2021学年高二数学下学期期末专项复习(沪教版)
(已下线)专题4.1 坐标平面上的直线【压轴题型专项训练】-2020-2021学年高二数学下学期期末专项复习(沪教版)人教B版(2019) 选修第一册 过关检测 第二章 第2.2节综合把关练上海市七宝中学2019-2020学年高二上学期期中数学试题新疆维吾尔自治区乌鲁木齐市第四中学2024届高三上学期12月月考数学试题新疆维吾尔自治区乌鲁木齐市第101中学2024届高三上学期12月月考数学试题