如图,二次函数
的图象与x轴交于O,A两点.
(1)求点A的坐标和此二次函数的对称轴.
(2)若P,Q在抛物线上且
.当
时,
.求m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e17016c6db8fe14d0c6f9e021f1535c.png)
(1)求点A的坐标和此二次函数的对称轴.
(2)若P,Q在抛物线上且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/838666bb61e5079e85229e4ab3333624.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40e8f7c3d729b9f2f7cb8fce734bd282.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bc0e509863dfca34e28a4d4c036fc72.png)
![](https://img.xkw.com/dksih/QBM/2021/5/12/2719628093177856/2736362150510592/STEM/df2048f5-a63e-4057-ab78-716f24291b9b.png)
更新时间:2021-06-05 11:25:57
|
【知识点】 其他问题(二次函数综合)
相似题推荐
解答题-问答题
|
适中
(0.65)
名校
【推荐1】在平面直角坐标系中,已知点
,抛物线
恰好经过A,B,C三点中的两点.
(1)求抛物线的函数表达式.
(2)D是射线AB上一点,过点D作x轴的平行线交抛物线于点
,点E在F的左边.若
,求点E的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e57cf63a4b62154afb43f82b3b4931e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5251297520d6785a9bc5a1839c548df7.png)
(1)求抛物线的函数表达式.
(2)D是射线AB上一点,过点D作x轴的平行线交抛物线于点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae30ab4f95807d7b0d585d888a7f436a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/918334489868bb4ec4cea30b74b5cc3b.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】二次函数
的图象的一部分如图,已知的顶点
在第二象限,且经过点
和点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/11/12c00df2-c25b-4203-8f3f-f28e4d1b5c3e.png?resizew=122)
(1)请判断实数
的取值范围,并说明理由;
(2)设此二次函数的图象与
轴的另一个交点为
,当
的面积为
面积的
倍时,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8748dc55e2f45bc37fc4d84d7310f79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49cba284d675a3028d7a8d54f1f8ae70.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/11/12c00df2-c25b-4203-8f3f-f28e4d1b5c3e.png?resizew=122)
(1)请判断实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设此二次函数的图象与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82e8ecb371ce77dca5554e8e03b41386.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d59ab85c075a09d55d69e159e4abb268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次