已知点
,
,
在抛物线
上,则
、
、
的大小关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/147a4607878c701953548232795162b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64ea6afb62cf36747dd178ba481ee45d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bc5159de5f3603fb9501b1161462fd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5dd4639d13bc0695ab485b0050ba3a9.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.![]() |
18-19九年级上·江苏南通·阶段练习 查看更多[2]
更新时间:2018-10-17 10:38:08
|
【知识点】 根据二次函数的对称性求函数值解读
相似题推荐
单选题
|
适中
(0.65)
【推荐1】如图,抛物线y=ax2+bx+c的对称轴为直线x=2,A(-1,y1)、B(m-1,y2)是抛物线上两点,若y2>y1,则m的取值范围是( )
![](https://img.xkw.com/dksih/QBM/2020/12/14/2613991233429504/2617746738012160/STEM/9cf03b16-22c9-400f-b78d-26d5d8652004.png?resizew=218)
![](https://img.xkw.com/dksih/QBM/2020/12/14/2613991233429504/2617746738012160/STEM/9cf03b16-22c9-400f-b78d-26d5d8652004.png?resizew=218)
A.m>0 | B.0<m<3 | C.m<-1 | D.0<m<6 |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c977d0f39570f4f89be26efe20cc056.png)
,当
与
时函数值相等,则
时,函数值等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c977d0f39570f4f89be26efe20cc056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f2b5ee1eabb64358a3d9db2349b6fce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2c9d44deafbbbb631c4c0db884c8874.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/224d30ca84f1aeeeda7a718e751a4925.png)
A.5 | B.![]() | C.![]() | D.-5 |
您最近一年使用:0次