如图,抛物线
的对称轴为直线
,与x轴分别交于点
,
,且
.下列结论:①
;②
;③
(t为实数);④当
时,y随x的增大而增大;⑤若方程
的两个实数根分别为
,
,且
,则
.正确的有( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/21/00aa7c6a-6dfb-4132-abef-4de801e296cf.png?resizew=172)
![](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/3726021850f5b937bf61783869b4d68e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c3cc34f2b062ca6ce98cec82b6cfc26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb7961cbe98aac6a5fdee94582c341b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16de2d7f06346a0fc6b5d6822e746237.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50b8c9d41649449d34d8a23f0b8cda66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97566ec5f4d6118a97d3dd44dc7ba9d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200849ce71f53c0321506e27de437b8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6969fbdabed37f1547f5590bf2afdcc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b86d648816ad60c46ef1569f7599b95d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/21/00aa7c6a-6dfb-4132-abef-4de801e296cf.png?resizew=172)
A.1个 | B.2个 | C.3个 | D.4个 |
更新时间:2024-02-23 19:23:24
|
相似题推荐
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适中
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名校
【推荐1】对于任意的实数m、n,定义符号
的含义为m,n之间的最大值,如
,
.定义一个新函数:
,则
时,x的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0396c790d7973706828ff8f8ff5bcaf0.png)
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A.![]() ![]() | B.![]() ![]() | C.![]() | D.![]() ![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
【推荐1】二次函数
的图象如图所示,其对称轴是
,且过点
,下列结论中正确的是( )
![](https://img.xkw.com/dksih/QBM/2021/2/23/2664274465611776/2671412904173568/STEM/efd22eaf-5037-4fd7-9008-e994c8825cff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b094cba781181aeb90752170e9ba6c94.png)
![](https://img.xkw.com/dksih/QBM/2021/2/23/2664274465611776/2671412904173568/STEM/efd22eaf-5037-4fd7-9008-e994c8825cff.png)
A.![]() | B.![]() |
C.![]() | D.方程![]() ![]() ![]() |
您最近一年使用:0次
单选题
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适中
(0.65)
【推荐2】二次函数
的图象如下图所示.根据图象判断,下列结论错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc90b02a4cd1425aabfc192b1cdee17.png)
A. ![]() | B.![]() | C.![]() | D. ![]() |
您最近一年使用:0次