题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061753-40617.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061753-47418.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061753-40617.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061753-69186.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061753-40617.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061754-76325.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061753-69186.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061754-71740.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061754-32362.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061754-36712.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061754-97320.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061755-57507.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061755-57047.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061755-57507.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061755-72386.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061755-92844.png)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061756-50518.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061755-57047.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061756-25752.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061753-40617.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061756-41405.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061756-40025.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061757-97406.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061757-91247.png)
解得
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061757-74258.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061757-94945.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061757-59166.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061753-40617.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061757-85658.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061756-25752.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061755-57507.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061755-92844.png)
已知了AP=1,即P点的纵坐标为1,代入抛物线的解析式中即可得出P点的横坐标,即OA、BP的长.然后根据矩形的面积公式即可求出矩形PAOB的面积.
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061737-92781.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061737-34076.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061738-50122.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061738-46022.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061738-96713.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061738-12720.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061739-49696.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061739-41507.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061739-28569.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061738-96713.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061739-96195.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061739-16984.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061740-33991.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061740-31358.png)
(1)求正方形
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061737-92781.png)
(2)当点
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061738-96713.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061740-46044.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061740-85569.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061741-43482.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061740-33991.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061739-16984.png)
(3)求(2)中面积
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061741-43482.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061740-33991.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061741-43482.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061738-96713.png)
(4)若点
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061739-16984.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061738-96713.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061740-46044.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061741-25468.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061740-33991.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061741-85190.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061741-25468.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061740-33991.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061738-96713.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061741-97533.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061738-96713.png)
(抛物线
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061742-52503.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061742-92442.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061727-82461.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061727-89622.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061727-40627.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061728-17636.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061728-11679.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061728-17636.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061728-82349.png)
(1)求点
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061728-17636.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061727-82461.png)
(2)求二次函数的解析式及它的最小值.
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061722-60391.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061722-88314.jpg)
(1)求a的值.
(2)求点F的坐标.
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061710-62444.png)
(1)求该公司累积获得的利润y(万元)与时间第x(月)之间的函数关系式;
(2)直接写出第x个月所获得S(万元)与时间x(月)之间的函数关系式(不需要写出计算过程);
(3)前12个月中,第几个月该公司所获得的利润最多?最多利润是多少万元?
![](http://img.shitiku.com.cn/uploads/allimg/20191019/20191019061710-29705.jpg)
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