已知抛物线
,当
时,y随x的增大而增大,m的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bd1424e95d30d42291383e736bf8a35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ccaa6e503b61e9ae78d8439cba2e328.png)
更新时间:2023-03-11 18:14:51
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【知识点】 y=ax²+bx+c的图象与性质解读
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【推荐1】对于给定实数a,记
是三数a,
,
中最大的数,则在数
,
,
,……,
,
,
,……,
,
,
中最小的数是________ .
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【推荐2】如图,若二次函数
的图象的对称轴为直线
,与
轴交于点
,与
轴交于点
、点
,则下列结论:①
;②二次函数的最大值为
;③
;④
;⑤当
时,
.⑥
;其中正确的结论有________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc90b02a4cd1425aabfc192b1cdee17.png)
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