题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101659-33674.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101659-25798.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101700-94173.png)
A.4 | B.-4 | C.![]() | D.![]() |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101700-12438.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101701-93151.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101656-50612.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101656-35611.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101657-60062.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101657-45047.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101656-35611.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101651-58349.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101651-68752.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101651-64270.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101642-80168.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101643-15372.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101643-99050.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101643-78512.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101643-22816.png)
(1)写出该抛物线的方程及其准线方程;
(2)当
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101644-48862.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101644-97687.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101644-52372.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101644-82070.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101615-85890.png)
(Ⅰ)求k的取值范围
(Ⅱ)若弦AB的中点为P,AB的垂直平分线与x轴交于点E(
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101615-36123.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101615-47677.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101600-24487.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101600-30644.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101600-62701.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101601-84740.jpg)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101601-84886.png)
(2)如图所示,过定点
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101601-30088.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101601-82465.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101601-17076.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101602-52033.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101602-51541.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101602-59161.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101602-48347.png)
(i)求四边形
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101603-94907.png)
(ii)设线段
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101603-51939.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101603-62151.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101603-85427.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101604-51376.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025101604-18499.png)
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