设直线
的方程为
.
(1)若直线
在两坐标轴上截距的绝对值相等,求直线
的方程;
(2)若直线
不经过第二象限,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d12ca7370cb0cddee7a5c7ca90404e2.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2022-10-11 15:20:32
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【推荐1】已知直线l的斜率与直线3x
2y=6的斜率相等,且直线l在x轴上的截距比在y轴上的截距大1,求直线l的斜截式方程.
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【推荐2】分别写出下列直线的斜率以及它们在x轴、y轴上的截距:
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(2)
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(3)
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(4)
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(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20b8d3564d7ae5687f69b64b150c4b35.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25000c067a3eb6df8ddcd6caa9d1dca5.png)
(3)
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(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d33b680d8ccebbfc88e190b965fa816c.png)
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【推荐1】过点
的直线
与
轴正半轴和
轴正半轴分别交于
,
.
(1)当
为
的中点时,求
的方程;
(2)当
面积取到最小值时,求
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f9a3ea5e76e165faeabfdbc9717c287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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解题方法
【推荐2】求过点(2,4)且在坐标轴上的截距之和为0的直线方程.
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【推荐1】求经过直线
和
的交点,且在两坐标轴上截距相等的直线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87e834f98f0ced886171822bbf1ee502.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/523e7ec16fc5d8d731b5cc857e6f7c8d.png)
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解题方法
【推荐2】已知
的顶点
,直线
的方程为
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所在直线的方程为
.
(1)求顶点A和
的坐标;
(2)求
面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecf394854007ecc5651723a838779673.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a5c09a70d2e90a30f8fd3ba4ede38a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdae78f4d3b8d8213ac3ac9a9567eb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5ed34fb976d59e36f5ae68ba97f5ff2.png)
(1)求顶点A和
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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【推荐3】已知两直线
和
的交点为
.
(1)求过点
且与直线
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过点
,且直线
与点
距离相等,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/240d493a5c42b0264eb903c4e1cc7562.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef1e3b0cd95ac42779f53b2df483a6f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc5c19ac440746be97d8b46af5d288a.png)
(1)求过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc5c19ac440746be97d8b46af5d288a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13c93980e45472b5840ce3a099e7c69d.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a159de0b2d9eb1ae0b7e664e64d3c6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc5c19ac440746be97d8b46af5d288a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a159de0b2d9eb1ae0b7e664e64d3c6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59dae6252b1578bb6cd983c77c90baf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a159de0b2d9eb1ae0b7e664e64d3c6c.png)
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