题目
题型:不详难度:来源:
答案
解析
试题分析:焦点为F(5,0),所以抛物线开口向右,标准方程可设为
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024094542-94930.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024094542-75394.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024094542-18689.png)
核心考点
举一反三
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![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024094524-57120.png)
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![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024094524-92219.png)
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![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024094525-93806.png)
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![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024094517-87607.png)
(1)若|AB|=8,求抛物线的方程;
(2)求
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024094517-76908.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024094509-48566.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024094509-38789.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024094510-73193.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024094510-14500.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024094510-26981.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024094510-81209.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024094511-15140.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024094511-24684.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024094511-15367.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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