1 . 已知抛物线
经过点
,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf210c8c9e83e70f2d3ede1e18a5f3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad20e2bc6576fc461419f8f138d26e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 一个二次函数图象的顶点为
,图象又过点
,求二次函数的解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faf03e87dd5d82d30fd01be26cee1f27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83eacd38727f29b2c2c68ee309080fee.png)
您最近一年使用:0次
3 . 二次函数
的图象经过点
,该二次函数的解析式为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2f8e5cb8c3e50ab908d5d4cc62f16f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70e95bc619779c4d9f65777b16fbffa8.png)
您最近一年使用:0次
2024-01-02更新
|
111次组卷
|
2卷引用:吉林省吉林市舒兰市2023-2024学年九年级上学期期末数学试题
4 . 如图,已知抛物线
过点
与
,与
轴交于点
.点
在抛物线上,且与点
关于对称轴
对称.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/1/a43f2cc7-ccd5-4dda-b67a-268c2692245e.png?resizew=134)
(1)求该抛物线的函数关系式和对称轴;
(2)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f3cc036d085403a7f06877b87ebf388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/767eaebec56a9b1581bce163117ea57d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1983581e0b9d49e9556dcc86bbe41b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/1/a43f2cc7-ccd5-4dda-b67a-268c2692245e.png?resizew=134)
(1)求该抛物线的函数关系式和对称轴;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
您最近一年使用:0次
名校
5 . 如图,抛物线分别经过点
,
,
.求抛物线的函数解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913f78382630e50543e5f7192cae3ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08ef03f452410ab19c6246567c427178.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/859bf9cae1ba707d53066042073251f9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/27/3410b874-0b34-4ee3-aa07-fbcc480f12ae.png?resizew=142)
您最近一年使用:0次
6 . 二次函数
的图象经过
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf210c8c9e83e70f2d3ede1e18a5f3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.1 | D.2 |
您最近一年使用:0次
名校
7 . 抛物线
经过点
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29f09b500a60ed3a5d28eca9546b5de2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76095b03d243fead89a6493614e4b68a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
A.![]() | B.2 | C.![]() | D.![]() |
您最近一年使用:0次
8 . 抛物线
经过点
,则a的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf210c8c9e83e70f2d3ede1e18a5f3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9d51b51352854f7a88f7f3619ba5be3.png)
您最近一年使用:0次
9 . 已知抛物线
的最高点为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5b56aab6c19411952e003b3d2386692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fed700b7a3ab2ee7fbae12507033af9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
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10 . 已知二次函数
,几组该函数x与y的对应值如表:
(1)求此二次函数的解析式;
(2)求m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d8de071a9c22c96a59b172d76c127e.png)
x | … | ![]() | 1 | 2 | … |
y | … | 0 | m | 3 | … |
(2)求m的值.
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