题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035655-64285.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035655-17652.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035655-86429.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035656-73360.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035656-19914.png)
解析
试题分析:由题意可知抛物线的
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035655-64285.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035655-17652.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035655-86429.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035656-19914.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035656-19914.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035641-39821.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035641-28504.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035642-65884.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035642-55176.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035642-99189.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035642-55176.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035642-99189.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035636-74976.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035636-13419.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035636-46726.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035636-33701.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035636-74976.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035636-74976.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035636-13419.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035637-25939.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035623-23212.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035623-17106.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035623-84721.png)
(1)求该抛物线的解析式及抛物线的顶点D的坐标;
(2)若点P是射线BD上一点,且以点P、A、B为顶点的三角形与△ABC相似,求点P的坐标.
A.(3,1) | B.(3,﹣1) | C.(﹣3,1) | D.(﹣3,﹣1) |
①abc<0;②2a﹣b=0;③4a+2b+c<0;④若(﹣5,y1),(
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035612-24871.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019035612-32879.png)
A.①② | B.②③ | C.①②④ | D.②③④ |
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