名校
解题方法
1 . 已知
的顶点坐标分别是
,
,
,
为
边的中点.
(1)求中线
的方程;
(2)求经过点
且与直线
平行的直线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8796f6d3e7a0e3771f83df47e99a970d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb7bbd15ddf2ac840cc08ad8492a0164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/743c08b3555fca31cd299d6d90242fba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(1)求中线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
(2)求经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
名校
解题方法
2 . 已知直线
与
互相垂直,垂足为
,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f752458b5870d09a72b7d9d19dec3b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46fa2d9771c4c5fccd30eba52e482d11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4fb4662068009c46ab62798c2e84858.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1ede0c7822059ae81dec24383d75886.png)
A.24 | B.0 | C.20 | D.![]() |
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名校
3 . 过
和
两点的直线的斜率是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ee8c50793afd59e6ab4a2be5a877759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4772c835cbe626040ecc4df30e6f0ccc.png)
A.1 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-05-07更新
|
532次组卷
|
2卷引用:北京市第十四中学2021-2022学年高二上学期期中考试数学试题
4 . 已知直线l的方程为
,则直线l( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d58c8baabd5281fc483930c7adf095f4.png)
A.恒过点![]() |
B.恒过点![]() |
C.恒过点![]() |
D.恒过点![]() |
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名校
解题方法
5 . 在平行四边形
中,
,边
所在直线的方程分别为
和
.
(1)求
边所在直线的方程和点
到直线
的距离;
(2)求线段
垂直平分线所在的直线方程;
(3)求过点
且在
轴和
轴截距相等的直线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4ffcc46a3e598d29cfc355787eca58b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9df7fc746f8c4801d8f2f0471ba3297e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/016f84d57dd58774432b03ea459dd1f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30ed9c6ea9d86f90cad471d02d484a41.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(3)求过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
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名校
6 . 已知直线
的一个方向向量为
,则直线
的斜率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f2d0d57360f280baa3e59ff34b2235a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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7 . 已知直线
与直线
相交于点
,
,则点
到坐标原点O的距离的最小值为 _______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d19b5f51544de84ec35a34a992ce114.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bd7a3c761ade49cc51ea60214af887e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40e72f6b2ef3329828cb8fc873eeba7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
名校
8 . 点
到直线
的距离最大时,直线
的方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a18deb8273ee656d1261766b469ee2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb9c9f542d3db74c13e758bf65e60b73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
解题方法
9 . 经过点
且与直线
垂直的直线方程为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff2595e01e8751886a27862cce04e2d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdf73c7f6f8e7ff4c06991b4d6dc0b44.png)
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10 . 已知点
是圆
上一点,则点
到直线
的距离的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4caba0c551b1f00f6cf561a904e0d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/617cc3d62722492a0f1c326d059a1fb9.png)
A.0 | B.1 | C.2 | D.3 |
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