二次函数
(
)的部分图象如图所示,则由图象可知一元二次方程
的两个解分别是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/8/db0e6e7c-c276-4cde-b2cd-8436dd539562.png?resizew=226)
![](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/13fa32c1e926f40a0722d106563777ef.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/8/db0e6e7c-c276-4cde-b2cd-8436dd539562.png?resizew=226)
A.![]() ![]() | B.![]() ![]() | C.![]() ![]() | D.![]() ![]() |
更新时间:2022-04-29 15:26:38
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【推荐1】二次函数
的图象如图所示,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
A.![]() ![]() | B.![]() |
C.![]() | D.![]() ![]() |
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【推荐2】已知二次函数
,若
,
是关于
的方程
的两个根,则实数
,
,
,
的大小关系可能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f4b9f61f15ce3bb1819ca98eea3c9cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bf92d07161eb214ec749fc6129fbe78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
A.![]() ![]() ![]() ![]() | B.![]() ![]() ![]() ![]() |
C.![]() ![]() ![]() ![]() | D.![]() ![]() ![]() ![]() |
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【推荐1】如图,抛物线
的图象经过点
,与
轴交点的横坐标分别为
,其中
,则下列结论中正确的是( )
![](https://img.xkw.com/dksih/QBM/2021/1/16/2637200210165760/2644526531895296/STEM/5c4942aca7b44fc0a5bdc7f62c9073bc.png?resizew=169)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/990a64c41f96ef4355bf4ae017143f99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9e8bd484b0db54a479c3827355bb6ca.png)
![](https://img.xkw.com/dksih/QBM/2021/1/16/2637200210165760/2644526531895296/STEM/5c4942aca7b44fc0a5bdc7f62c9073bc.png?resizew=169)
A.![]() | B.![]() |
C.![]() | D.k为任意实数,关于x的方程![]() |
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【推荐2】如图是二次函数
图象的一部分,其对称轴为直线
,且过点
.下列说法,①
;②
;③
;④
;⑤
.其中正确的有( )个.
![](https://img.xkw.com/dksih/QBM/2022/12/22/3136087905918976/3154198158229504/STEM/04d0970c8c7947ab9a734d0b34a1ae49.png?resizew=238)
![](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/a7267f12d61e2e4c373e1407c05d3610.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16de2d7f06346a0fc6b5d6822e746237.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbbcf3f7721240b8d2161f8c66a0fcf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/810961de0c2c5174c5be32e8e5b4bf21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da04f641c850a75a63031d5aed2e0625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e0c865c1f8d424665e0f756aa600ff1.png)
![](https://img.xkw.com/dksih/QBM/2022/12/22/3136087905918976/3154198158229504/STEM/04d0970c8c7947ab9a734d0b34a1ae49.png?resizew=238)
A.2 | B.3 | C.4 | D.5 |
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