二次函数
与自变量
的部分对应值表如下,已知有且仅有一组值错误(其中
,
,
,
均为常数)
甲同学发现当
时,
是方程
的一个根;乙同学发现当
时,则
.下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae018fde08edf0539089f98c17e11ff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab92ed3ede0ce2b0003c4dc46aa53a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/727d68094433f0a84127b53d049a8a6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cf2f46bc120e5b6f8317b02370bffbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ed405b1635e4343c798f42643bb4c53.png)
A.甲对乙错 | B.甲错乙对 | C.甲乙都错 | D.甲乙都对 |
2023·浙江杭州·一模 查看更多[4]
2023年浙江省杭州市上城区中考数学一模试题(已下线)【浙江新东方】【2023年】【初三下】【397】模拟考试数学试题(已下线)专题22.12 二次函数y=ax2+bx+c(a≠0)的图象与性质(分层练习)(培优练)-2023-2024学年九年级数学上册基础知识专项突破讲与练(人教版)(已下线)第22章 二次函数(单元测试·基础卷)-2023-2024学年九年级数学上册基础知识专项突破讲与练(人教版)
更新时间:2023-05-03 17:04:56
|
【知识点】 y=ax²+bx+c的图象与性质解读
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【推荐1】已知关于
的函数
是常数
,设
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,
,
时,所对应的函数为
,以下结论:①满足
的
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A.②③ | B.①③ | C.①② | D.①②③ |
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名校
【推荐2】如图,在正方形
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A.![]() | B.![]() | C.![]() | D.![]() |
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