已知点
两点均在二次函数
的图像上,则b的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06fc714e772d5302fdf0311feab9cbe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/974cf6ed500e27d2a9928db300645f4f.png)
A.![]() | B.2 | C.![]() | D.4 |
2023·浙江·模拟预测 查看更多[2]
更新时间:2023-03-13 07:30:32
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较易
(0.85)
【推荐1】如图,抛物线
的对称轴是
,关于x的方程
的一个根为
,则另一个根为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/10/89da0a19-e213-4f63-949a-e7a742269bef.png?resizew=110)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13fa32c1e926f40a0722d106563777ef.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/10/89da0a19-e213-4f63-949a-e7a742269bef.png?resizew=110)
A.![]() | B.![]() | C.![]() | D.0 |
您最近一年使用:0次
单选题
|
较易
(0.85)
名校
【推荐2】已知二次函数
的图象过点
,
,
,则
,
,
的大小关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b371d33205baefa01f381b7965f1603b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19cc6b9d87d76c6392e8842bf9a9e9b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4ff7f7dc7309423512eab7a3fac3b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebca6256cdf1fb735c24bff5463be293.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9314bd1d7a6e070f4f2428f9a321804e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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【推荐1】已知二次函数
的图象经过点
、
、
、
四点,则
与
的大小关系正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/990a64c41f96ef4355bf4ae017143f99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2375a27ead9549550676d4e6a2b47243.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4d5cbd03de5dfc6b3c03223d4584601.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fa5c748c83ff6211e3d65e8cff2aaae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ddf38efc8193e583c1a275aa3f3dfd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
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A.![]() | B.![]() | C.![]() | D.不能确定 |
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【推荐2】二次函数图象上部分点的坐标对应值列表如下:
x | … | 0 | 1 | … | |||
y | … | … |
则该函数图象的对称轴是( )
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次