在平面直角坐标系中,O为坐标原点,抛物线 C:
的顶点为M,与y轴交点为N.
(1)求点M,N的坐标;
(2)已知点P(4,2),将抛物线C向上平移得抛物线
,点N平移后的对应点为
,且
,求抛物线
的解析式;
(3)如图,直线
与y轴交于点A,与直线OM交于点 B.现将抛物线C平移,保持顶点在直线OB上,若平移后抛物线与射线AB(含端点A)只有一个公共点,求它的顶点横坐标h的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8719944485806ca0401afb9324f6c3cf.png)
(1)求点M,N的坐标;
(2)已知点P(4,2),将抛物线C向上平移得抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28b1ba4307cfde9b424d468bfcdf6c5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36d643f632a41cc96806f9da4604ad94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
(3)如图,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb008c7621a64ef3139f84ae2939fccd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/2/36bbbf64-d6a6-44e9-870e-897534ba81be.png?resizew=168)
更新时间:2021-03-08 20:17:05
|
【知识点】 其他问题(二次函数综合)
相似题推荐
解答题-问答题
|
较难
(0.4)
真题
名校
【推荐1】如图,直线与
轴交于点
,与
轴交于点
,抛物线
经过点
,
.
(2)M(m,0)为x轴上一个动点,过点M垂直于x轴的直线与直线AB和抛物线分别交于点P、N,
①点在线段
上运动,若以
,
,
为顶点的三角形与
相似,求点
的坐标;
②点在
轴上自由运动,若三个点
,
,
中恰有一点是其它两点所连线段的中点(三点重合除外),则称
,
,
三点为“共谐点”.请直接写出使得
,
,
三点成为“共谐点”的
的值.
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐2】如图①,二次函数
的图像与
轴交于
、
两点(点
在
的左侧),顶点为
,连接
并延长交
轴于点
,若
.
(1)求二次函数的表达式;
(2)在
轴上方有一点
,
,且
,连接
并延长交抛物线于点
,求点
的坐标;
(3)如图②,折叠△
,使点
落在线段
上的点
处,折痕为
.若△
有一条边与
轴垂直,直接写出此时点
的坐标.
![](https://img.xkw.com/dksih/QBM/2019/3/26/2168998293643264/2169538316746752/STEM/2d24586b3d064233aaec9c9791b7623e.png?resizew=209)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fbc527887191f766ba014f99ac7c052.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/510634e49198fc429d942d00fa5446ab.png)
(1)求二次函数的表达式;
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0f58c303fc88aa19734bd6b2caad127.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6461c5f4f557849601a3dd788d615ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6655e2fa64a32cd12fe0279afd65d73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(3)如图②,折叠△
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/927b3a1e07c7f93530752a8a03cf1b82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4710d4fc08006184d37c1970c1b50a4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39e210795a966bd5dc1293479ab1988b.png)
![](https://img.xkw.com/dksih/QBM/2019/3/26/2168998293643264/2169538316746752/STEM/2d24586b3d064233aaec9c9791b7623e.png?resizew=209)
![](https://img.xkw.com/dksih/QBM/2019/3/26/2168998293643264/2169538316746752/STEM/d9bc878b25ba47c6b3a16d8220cacd89.png?resizew=213)
您最近一年使用:0次