二次函数
(
)的部分图象如图所示,有以下结论:①
;②
;③若
与
是抛物线上的两点,则
;④
,其中正确的结论是( )
![](https://img.xkw.com/dksih/QBM/2022/5/20/2983486002995200/2988515011616768/STEM/23083f77-bf26-490c-989e-406cc8fb045e.png?resizew=128)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fed5d7e6a529913ba7ce11a9252d5af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0092ee58c32148e9c9b49f6714363e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62a17431f86f35afcf3ee7e0c4a9dee0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f09854751499971d55562552c9c7f384.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ac67e9a909472ab852d38d2ec66a1e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05e84dbb03e8c627ff11d5c7aeb0c8b5.png)
![](https://img.xkw.com/dksih/QBM/2022/5/20/2983486002995200/2988515011616768/STEM/23083f77-bf26-490c-989e-406cc8fb045e.png?resizew=128)
A.①② | B.②③ | C.①③ | D.①③④ |
更新时间:2022-05-27 17:32:16
|
【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】二次函数
的部分图象如图所示,有以下结论:①
;②
;③
;④
;其中正确的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8352b2e643a7ce605334f1b0e572bfb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f3893badb238dd11cfd88f87dffe425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73c21bd0bd90a89b7ff5ac0eacf612a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6848d3dd360edae4663c4b86b5fb4245.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb1beec07792cbfc2f46de2aa151c5d6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/9/adce425f-a68e-4521-9148-c874a5294b06.png?resizew=126)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
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适中
(0.65)
【推荐2】已知二次函数
的图象如图所示,下列四个结论:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1c9ae241fd78126274c65e17990c88.png)
;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c650fe55b7603f106c53ca2423451c6.png)
;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82e415812cca9545611c0faa0c01b1c.png)
;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d8b8edd94bc4d5d517ec77e56800e41.png)
,其中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/9/e9fb8a95-411c-46d2-9111-d776595c883e.png?resizew=144)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1c9ae241fd78126274c65e17990c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73c21bd0bd90a89b7ff5ac0eacf612a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c650fe55b7603f106c53ca2423451c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a1933d69191704266d65ff048512d7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82e415812cca9545611c0faa0c01b1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9deb79d044a379f31a8fc57736d7ead.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d8b8edd94bc4d5d517ec77e56800e41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f3893badb238dd11cfd88f87dffe425.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/9/e9fb8a95-411c-46d2-9111-d776595c883e.png?resizew=144)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次