二次函数
中的
和
满足下表:
则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8352b2e643a7ce605334f1b0e572bfb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
…… | 0 | 1 | 2 | 3 | …… | ||
…… | 0 | m | 0 | …… |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2023-08-08 14:28:41
|
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适中
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【推荐1】函数
的图像经过
,那么![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72850427e83ff19a24305783e080b280.png)
______ 0.(填“
”,“
”或“
”)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4407788e4dc88210bca71a2551d4f2f9.png)
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【推荐2】一次函数y=
x+2中,当x=9时,y=__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
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填空题
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适中
(0.65)
【推荐1】直线y=-x+3与x轴交于点A、与y轴交于点B,经过A、B两点的二次函数y=-x2+2x+c的图象与x轴的另一个交点为点C,P是抛物线上第一象限内的点,连接OP,交直线AB于点Q,设点P的横坐标为m,PQ与OQ的比值为n.
(1)c=___________ ;
(2)n的最大值为___________ .
(1)c=
(2)n的最大值为
您最近一年使用:0次
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(0.65)
【推荐2】抛物线
,
,
是常数,
经过
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两点.下列结论:①
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的两实数根分别是
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