已知二次函数
的图象的对称轴为直线
,其图象如图所示,现有下列结论:①
;②
;③
;④
;⑤
.其中正确结论的个数是( )
![](https://img.xkw.com/dksih/QBM/2022/1/4/2887403472248832/2890020311293952/STEM/5f816278-f4cf-4a0f-ae29-5edf78ad2413.png?resizew=143)
![](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/73c21bd0bd90a89b7ff5ac0eacf612a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa285de4d015f208441ffe9a84bbd780.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50b8c9d41649449d34d8a23f0b8cda66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/133c0e04e1703c4dcf7f4cbe73afdf06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f89938c2f0a77fdecbc1b7d166a93ae.png)
![](https://img.xkw.com/dksih/QBM/2022/1/4/2887403472248832/2890020311293952/STEM/5f816278-f4cf-4a0f-ae29-5edf78ad2413.png?resizew=143)
A.1 | B.2 | C.3 | D.4 |
更新时间:2022-01-08 13:44:17
|
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc90b02a4cd1425aabfc192b1cdee17.png)
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