已知二次函数
自变量
与函数值
之间满足下列数量关系:
那么
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c83f2638d71e5d00c241c6704b32094d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
那么
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5302583f44ef1da2a9c8b999a3f39535.png)
A.-2 | B.-1 | C.0 | D.1 |
更新时间:2018-11-07 16:08:57
|
【知识点】 根据二次函数的图象判断式子符号解读
相似题推荐
单选题
|
适中
(0.65)
【推荐1】如图,抛物线
与
轴交于点
,
,与
轴交于点
,对称轴为直线
若点
的坐标为
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc90b02a4cd1425aabfc192b1cdee17.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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55375e918fc6c097b81fede8d764e686.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ab979573ebf184127b7117aa9c330d7.png)
A.![]() |
B.![]() |
C.![]() ![]() ![]() |
D.点![]() ![]() ![]() ![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】二次函数
的图象如图所示,若
,
,
,则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/20/0758ce54-18e2-429d-916e-7702adb7b820.png?resizew=201)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85a371a99db31024c20e7d7291457036.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8adbfb1280f61fce8981d2d8def2e70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e32ea34859a775c0859242f31aa2f19b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/20/0758ce54-18e2-429d-916e-7702adb7b820.png?resizew=201)
A.![]() ![]() ![]() |
B.![]() ![]() ![]() |
C.![]() ![]() ![]() |
D.![]() ![]() ![]() |
您最近一年使用:0次