如图,抛物线与x轴交于点
,
,与y轴交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/31/9a2e6e4d-3193-4503-806a-94b4c08ad06a.png?resizew=202)
(1)求该抛物线的表达式;
(2)已知
,
是抛物线上的两点,根据图象分析,若
,则
的取值范围是______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a525534689bd2701205d4ab17574c39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c850811ba59a05e945a665196539a048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5558ffa6dc28d437c0467c7f361d444.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/31/9a2e6e4d-3193-4503-806a-94b4c08ad06a.png?resizew=202)
(1)求该抛物线的表达式;
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/035e5fe56c98a26bfc8c9f3eac0dbb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49834e95fc10578a23c5896081ae1f37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34021e3177f9a965531e0f66d5a313a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
更新时间:2023-10-30 10:02:38
|
相似题推荐
解答题-问答题
|
较易
(0.85)
【推荐1】二次函数
与
轴的两交点
、
的横坐标分别是
,与
轴交点
的纵坐标是
.
(1)求二次函数的解析式;
(2)若该二次函数的顶点为点
,求△
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50009f7405991da849d5f7d943327092.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d13ce3ebd1112220c639562739f1f9d1.png)
(1)求二次函数的解析式;
(2)若该二次函数的顶点为点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4d781525777c7b5284dffc70b2a28a.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐2】如图,在平面直角坐标系xOy中,已知抛物线y=ax2+bx+c经过点A(1,0),B(0,2)、C(3,0).
(1)求该抛物线的表达式;
(2)设该抛物线的对称轴与x轴的交点为D,点E在该抛物线的对称轴上,如果以点A、D、E所组成的三角形与△AOB相似,求点E的坐标.
(1)求该抛物线的表达式;
(2)设该抛物线的对称轴与x轴的交点为D,点E在该抛物线的对称轴上,如果以点A、D、E所组成的三角形与△AOB相似,求点E的坐标.
![](https://img.xkw.com/dksih/QBM/2021/12/6/2866435509821440/2869737493020672/STEM/25030cce746640909cdfee21f6bf0767.png?resizew=210)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐1】已知二次函数y=ax2+4ax+4a+3(a≠0).
(1)求二次函数图象的顶点坐标;
(2)若a=﹣
,求二次函数图象与x轴的交点坐标.
(1)求二次函数图象的顶点坐标;
(2)若a=﹣
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
您最近一年使用:0次
解答题-证明题
|
较易
(0.85)
【推荐2】已知抛物线
(
为常数)
(1)当
时,求抛物线的顶点坐标;
(2)求证:无论
为何值,该抛物线顶点都在函数
的图象上;
(3)当
时,求该函数图象顶点纵坐标的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e913b6ab23c6dda1ee0b69350632b13b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
(2)求证:无论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e715696b95de4901d2bf8b0757cdeb6.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c2446bc86e2e0f35bfa15821c0ca728.png)
您最近一年使用:0次