如图,抛物线
的图象与x轴交于点A、B(点A在点B左侧),与y轴交于点C,点
在抛物线上,且
.
(1)求m的值;
(2)求抛物线的函数解析式;
(3)在线段
上是否存在点P,使得
为等腰三角形?若存在,求出点P的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f599d3c867f757c210dff0213fd420d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc49c17bcf294a6d572b8a82696661f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0f2be9468f9170e651544e0a5ecdf4b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/9/098374b6-f250-4f84-a733-bd3f4fd3895f.png?resizew=151)
(1)求m的值;
(2)求抛物线的函数解析式;
(3)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b4dcc093218443f71a046b6df94bbe.png)
更新时间:2024-03-10 11:48:16
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【推荐1】世界水日为每年的3月22日,宗旨是唤起公众的节水意识,加强水资源保护.某市节约用水,采取阶梯分段收费标准,已知用户每月用水量不超过15吨时,水费为a元/吨,每月应交水费y(元)与用水量x(吨)之间的函数关系如图所示.
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【推荐2】已知y与
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(1)求y与x的函数关系式;
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【推荐1】如图,在平面直角坐标系中,抛物线
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![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/12/58919110-00fb-48f1-a6a5-c989f8adc0d8.png?resizew=147)
(1)请写出抛物线的解析式.
(2)若点
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(3)点
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(1)请写出抛物线的解析式.
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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(3)点
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【推荐2】如图,已知抛物线
的对称轴为
,且抛物线经过
两点,与
轴交于点
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(2)在第二象限抛物线上找一点
,
的面积最大,求出此点
的坐标;
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为抛物线的对称轴
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc90b02a4cd1425aabfc192b1cdee17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
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(2)在第二象限抛物线上找一点
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(3)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
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解答题-问答题
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【推荐1】如图,抛物线
与x轴交于A,B两点,与y轴交于点C,抛物线的对称轴交x轴于点D.已知A(-1,0),C(0,3).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/13/ad4dfe36-4a16-46d0-a9f0-8f37eb8a2638.png?resizew=199)
(1)求抛物线的解析式;
(2)在抛物线的对称轴上有一点M,使得
的值最大,求此点M的坐标;
(3)在抛物线的对称轴上是否存在P点,使△PCD是等腰三角形,如果存在,求出点P的坐标,如果不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56054d2a0a992e40b07971169e955486.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/13/ad4dfe36-4a16-46d0-a9f0-8f37eb8a2638.png?resizew=199)
(1)求抛物线的解析式;
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b62408b361bd565af5ce9d442a42a145.png)
(3)在抛物线的对称轴上是否存在P点,使△PCD是等腰三角形,如果存在,求出点P的坐标,如果不存在,请说明理由.
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解答题-应用题
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适中
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【推荐2】如果一条抛物线
与
轴有两个交点,那么以该抛物线的顶点和这两个交点为顶点的三角形称为这条抛物线的“抛物线三角形”.
(2)若抛物线
的“抛物线三角形”是等腰直角三角形,求
的值;
(3)如图,
是抛物线
的“抛物线三角形”.请问是否存在以原点
为对称中心的矩形
?若存在,求出过
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(2)若抛物线
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