已知二次函数
的部分图象如图所示,则关于
的一元二次方程
的解为
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/16/194eaf0d-e6fd-466c-8107-09ae724a0cc0.png?resizew=113)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d86667ae8cc7f37366f0c539cb189692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e102e695a0eb50d4420dbe9952c9fd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/16/194eaf0d-e6fd-466c-8107-09ae724a0cc0.png?resizew=113)
A.3或1 | B.![]() | C.3或![]() | D.3或![]() |
更新时间:2024-01-16 11:41:14
|
【知识点】 根据二次函数图象确定相应方程根的情况解读
相似题推荐
单选题
|
较易
(0.85)
【推荐1】抛物线
的图象如图所示,则一元二次方程
的解是( )
![](https://img.xkw.com/dksih/QBM/2020/12/30/2625242764787712/2629757296525312/STEM/67582816-a048-4d13-895f-3b9a0ebad0a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13fa32c1e926f40a0722d106563777ef.png)
![](https://img.xkw.com/dksih/QBM/2020/12/30/2625242764787712/2629757296525312/STEM/67582816-a048-4d13-895f-3b9a0ebad0a5.png)
A.x=-1 | B.x=3 | C.x=-1或x=3 | D.无法确认 |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】二次函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc4f7d5a5627d6133810fedde1d0d0b2.png)
中,自变量
与函数
的对应值如下表:
若
,则一元二次方程
的两个根
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc4f7d5a5627d6133810fedde1d0d0b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![]() | … | ![]() | ![]() | ![]() | 1 | 2 | 3 | 4 | … |
![]() | … | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | … |
若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d19628cb94662dd79284304dfbc630b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13fa32c1e926f40a0722d106563777ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be07753eab86fa9c439a65db51c9a9e4.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次