题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022143959-46162.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022143959-49477.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022143959-50405.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022143959-49477.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022144000-82181.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022144000-23534.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022143959-50405.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022144000-34368.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022144000-92891.png)
解析
试题分析:先求出点
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022143959-46162.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022143959-49477.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022144001-63695.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022144000-23534.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022144000-34368.png)
试题解析:点
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022143959-46162.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022143959-49477.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022144001-63695.png)
因为点
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022144001-41621.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022144000-23534.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022144000-82181.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022144000-23534.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022144001-64221.png)
化简后得到
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022144000-23534.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022144000-34368.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022143952-72274.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022143952-72274.png)
A.存在一条 | B.存在三条 | C.存在六条 | D.不存在 |
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022143950-20588.png)
(1)与直线2x+3y+5=0平行;
(2)与直线2x+3y+5=0垂直.
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022143941-92216.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022143941-73033.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022143941-54672.png)
A.1 | B.2 | C.3 | D.4 |
A.5 | B.4 | C.2 | D.1 |
A.0 | B.-8 | C.2 | D.10 |
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