二次函数y=ax2+bx+c(a≠0)的图象如图所示,根据图象解答下列问题:
(1)写出方程ax2+bx+c=0的两个根;
(2)写出不等式ax2+bx+c>0的解集;
(3)求y的取值范围.
(1)写出方程ax2+bx+c=0的两个根;
(2)写出不等式ax2+bx+c>0的解集;
(3)求y的取值范围.
![](https://img.xkw.com/dksih/QBM/2021/12/23/2878934945570816/2883581759168512/STEM/80429b22-b689-4fcf-8829-7a99d839c409.png?resizew=212)
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(已下线)专题10 二次函数与一元二次方程-2021-2022学年九年级数学下册链接教材精准变式练(北师大版)(已下线)专题22.28 二次函数与一元二次方程(知识讲解)-2022-2023学年九年级数学上册基础知识专项讲练(人教版)(已下线)专题2.31 二次函数与一元二次方程(知识讲解)-2022-2023学年九年级数学下册基础知识专项讲练(北师大版)(已下线)专题5.31 二次函数与一元二次方程(知识讲解)-2022-2023学年九年级数学下册基础知识专项讲练(苏科版)
更新时间:2021-12-30 11:25:01
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