题目
题型:期末题难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050338-60424.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050338-41667.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050339-61104.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050339-49757.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050339-81064.gif)
(1)求直线l的解析式;
(2)将
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050339-80397.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050340-36062.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050340-11309.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050340-61001.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050340-54793.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050341-16836.gif)
A点坐标为
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050341-93972.gif)
在
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050341-48688.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050341-87792.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050341-34431.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050342-58237.gif)
设直线l的解析式为
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050342-32317.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050342-41806.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050342-85247.gif)
解得
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050342-54580.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050343-76639.gif)
(2)如图,设
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050343-38480.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050343-34341.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050343-88601.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050344-20670.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050344-67044.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050344-26910.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050344-32843.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050345-80617.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050345-44187.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050345-51646.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050345-41042.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050346-75854.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050346-12751.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050346-80799.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050346-56919.gif)
核心考点
试题【如图,在平面直角坐标系中,点的坐标为,以点为圆心,8为半径的圆与x轴交于两点,过A作直线l与x轴负方向相交成60°的角,且交y轴于C点,以点为圆心的圆与x轴相切】;主要考察你对待定系数法求一次函数解析式等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050316-13872.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191017/20191017050316-88511.gif)
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