若点
,
都在二次函数
的图象上,且
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5a3f1ebd15d503215a2c50cd5c922e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74e18b12d61dd15f86120524c13f8776.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dad33b04b20c6676c26186f0cf09efa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f99df1a7b58018125b99578b779342.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2022-01-28 13:46:09
|
【知识点】 y=ax²+bx+c的图象与性质解读
相似题推荐
单选题
|
适中
(0.65)
名校
【推荐1】下表是二次函数
的函数值y与自变量x的几组对应值.下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d92dc7f59572fc5aeba24c37ef09a3a.png)
x | 0 | 1 | 2 | |
y | m | m | n |
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
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适中
(0.65)
【推荐2】如图是二次函数
的部分图象,图象过点
,对称轴为
,给出下面五个结论:①
;②
;③
;④
;⑤若
,则
.其中正确的个数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/3/0aa47d0a-2da8-40d0-ac70-e0f53e2edbe3.png?resizew=163)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f2b1f4120365cb6ee4925fe417563f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/375386102cba5bfd93bdf340216eb22d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/536178538dd8176b8743e3ceb94523a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c766352f0be38b719621052de92615bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d064c28a84550fdf215e9296cdbb879.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a57458464618fcf619375a93d3c66d69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24b843858ba23012c724dea0c51d54a3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/3/0aa47d0a-2da8-40d0-ac70-e0f53e2edbe3.png?resizew=163)
A.1个 | B.2个 | C.3个 | D.4个 |
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