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二次函数的图象

> 二次函数y=ax 2+bx+c的图像如图所示，则关于此二次函数的下列四个结论：①a<0②a>0③b 2-4ac>0④ 中，正确的结论有 [ ] A.1个 B.2个 C.3个 D.4个

问题：

发布时间：2024-09-12

二次函数y=ax ²+bx+c的图像如图所示，则关于此二次函数的下列四个结论：①a<0②a>0③b ²-4ac>0④ 中，正确的结论有

[ ]
A.1个
B.2个
C.3个
D.4个

参考答案：

提问用户：9u***ake

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