已知二次函数
(a,b,c是常数,
)的y与x的部分对应值如下表:
下列结论:
①
;
②
;
③当
时,函数最小值为-6;
④若点
,点
在二次函数图象,则
;
⑤方程
有两个不相等的实数根.
其中,正确结论的序号是______ .(把所有正确结论的序号都填上)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
0 | 2 | ||||
6 | 0 | 6 |
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39ab0bd4485a319a0cef9d46e2adebdf.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
④若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0922acd4f6c44fbb9472be472264970e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe2ce0d6f3075dd2651a0d52346ee172.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ac67e9a909472ab852d38d2ec66a1e1.png)
⑤方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9993a6c38829d517800df946c60f3991.png)
其中,正确结论的序号是
更新时间:2024-05-24 12:57:50
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