若A(﹣3,y1),B(3,y3),C(2,y2)二次函数y=x2+4x﹣5的图象上的三点,则y1、y2、y3的大小关系是( )
A.y1<y2<y3 | B.y2<y1<y3 | C.y3<y1<y2 | D.y1<y3<y2 |
更新时间:2019-03-14 16:05:12
|
【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)
【推荐1】如图,抛物线
与x轴正半轴交于点A(3,0),以OA为边在x轴上方作正方形OABC,延长CB交抛物线于点D,再以BD为边向上作正方形BDEF,则点E的坐标为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92b7c8b445b483a4a8edc0d68d822ef2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/26/e0530e1e-ee93-4d09-91d2-0d83608af147.png?resizew=135)
A.(![]() ![]() | B.(![]() ![]() | C.(4,4) | D.(4.5,4.5) |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】已知二次函数
的图象如图所示,有以下结论:①
;②
;③
;④
;⑤
.其中正确结论的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73c21bd0bd90a89b7ff5ac0eacf612a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a31d3ff0489fd0dec060f5f1cc30117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96ff1511f9d7985acf11bb803f1ef983.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50b8c9d41649449d34d8a23f0b8cda66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc8e4129927f147aaa9c300e529f637.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/25/511bfb1e-7b4f-46e8-b940-9e063a283270.png?resizew=161)
A.4个 | B.3个 | C.2个 | D.1个 |
您最近一年使用:0次