如图,抛物线
与x轴交于A,B两点,与y轴交于C点,已知
,
,以
为边在
左侧作等边
,点D在第二象限.
(2)将等边
沿x轴方向平移,在抛物线的对称轴上存在一点E,使得以点A,C,D,E为顶点的四边形是菱形,请求出点E的坐标,并写出平移方式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3840f87724d3f0e58fc8746f95565000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/472d50aa35765471b35986bd59107e6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8d0613db5d5f75e9b1829fa4e0e1143.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
(2)将等边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
更新时间:2024-06-13 21:24:49
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相似题推荐
解答题-问答题
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适中
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【推荐1】如图,在平面直角坐标系中,抛物线
经过
两点,与x轴另一交点为B.
![](https://img.xkw.com/dksih/QBM/2022/10/10/3084827299807232/3085534566498304/STEM/96483e64ee3e4c4097251ca8cc679a6e.png?resizew=239)
(1)求该抛物线的解析式;
(2)在抛物线的对称轴找出点若M,使得
,求出点M的坐标;
(3)点P为直线BC下方的抛物线上的一个动点(点P与B、C不重合),求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aff7b51acff9989cd85f702a8c8ed30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/932926539c708624d45e4bae681bcdad.png)
![](https://img.xkw.com/dksih/QBM/2022/10/10/3084827299807232/3085534566498304/STEM/96483e64ee3e4c4097251ca8cc679a6e.png?resizew=239)
(1)求该抛物线的解析式;
(2)在抛物线的对称轴找出点若M,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4f0aab8f5c0dc35d1cb82ef25c2412d.png)
(3)点P为直线BC下方的抛物线上的一个动点(点P与B、C不重合),求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0be1ec33951eb3e12fa523e3ebb3a954.png)
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【推荐2】在平面直角坐标系xOy中,抛物线
的顶点为P.P,M两点关于原点O成中心对称.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/16/0e42b86d-3ef3-4599-ac16-6fec65de1001.png?resizew=255)
(1)求点P,M的坐标;
(2)若该抛物线经过原点,求抛物线的表达式;
(3)在(2)的条件下,将抛物线沿x轴翻折,翻折后的图象在0≤x≤5的部分记为图象H,点N为抛物线对称轴上的一个动点,经过M,N的直线与图象H有两个公共点,结合图象求出点N的纵坐标n的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27610837dd8c5c7009f602392bf7c8f1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/16/0e42b86d-3ef3-4599-ac16-6fec65de1001.png?resizew=255)
(1)求点P,M的坐标;
(2)若该抛物线经过原点,求抛物线的表达式;
(3)在(2)的条件下,将抛物线沿x轴翻折,翻折后的图象在0≤x≤5的部分记为图象H,点N为抛物线对称轴上的一个动点,经过M,N的直线与图象H有两个公共点,结合图象求出点N的纵坐标n的取值范围.
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解答题-作图题
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【推荐3】第二十四届冬奥会在北京成功举办,在跳台滑雪项目中,运动员首先沿着跳台助滑道飞速下滑,然后在起跳点腾空,身体在空中飞行至着陆坡着陆,再滑行到停止区终止.某数学小组对该项目中的数学问题进行了深入研究,下图是该小组绘制的赛道截面图,以停止区
所在水平线为
轴,过起跳点
与
轴垂直的直线为
轴,
为坐标原点,建立平面直角坐标系,
为着陆坡,
,某运动员在
处起跳腾空后,飞行至着陆坡的
处着陆,过点
作
轴于点
,且
,在空中飞行过程中,运动员到
轴的距离
与水平方向移动的距离
具备二次函数关系,其解析式为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/20/635c06e4-11ab-4d96-a17d-c517345ac9a3.png?resizew=235)
(1)
_________,点
的坐标为_________;
(2)进一步研究发现,该运动员在飞行过程中,其水平方向移动的距离
与飞行时间
具备一次函数关系,当运动员在起跳点腾空时,
,
;空中飞行
后着陆.
①求
关于
的函数解析式;
②当
为何值时,运动员离着陆坡的竖直距离
最大,最大值是多少?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ffb694021b52653de5141ae27ba6d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0914b68f106a912420705b2f3928ca42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ffb694021b52653de5141ae27ba6d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fcf9bfbf771cb6118f8e631724314e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/701f3b0e2bedfe5195443459072d798e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ad726b13d9f063ada5c2046665cbc42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0914b68f106a912420705b2f3928ca42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da9dcf6c319174c9ea2b1ceaed1649a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da9dcf6c319174c9ea2b1ceaed1649a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62eef993e84a8f62c579828775b6f69f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/252053b853152bd294a8315debd00b92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a13c625a9c87a62a02a0c83680122e9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ffb694021b52653de5141ae27ba6d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f38197c34c42e180eac825662efd62d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a8288df5c66b22fcb3e95d97b7b66f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08ec3cb4fd21b785273fc238076a3d04.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/20/635c06e4-11ab-4d96-a17d-c517345ac9a3.png?resizew=235)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f79da421353ad74da1098269cc4d2829.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da9dcf6c319174c9ea2b1ceaed1649a.png)
(2)进一步研究发现,该运动员在飞行过程中,其水平方向移动的距离
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a8288df5c66b22fcb3e95d97b7b66f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41fb80b591b497d8d7a6d8592160de44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6135527842e3c0719dfa306a107ae8db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c6d79383c6503e1817378347afc66ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0746b442f8f44aa4813f545cf84c472.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ffb694021b52653de5141ae27ba6d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08075b3b73dd2609baad69a496fdd9a8.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08075b3b73dd2609baad69a496fdd9a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b9dc24ec90db85ff4a59ead84e38c8d.png)
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解答题-问答题
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【推荐1】如图,抛物线
与
轴交于点
,与
轴交于点
,点
为线段
上一动点,过点
且垂直于
轴的直线与直线
及抛物线分别交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/28/0f462bb2-8e50-4b2d-9641-a811cf5eb92a.png?resizew=360)
(1)求抛物线的解析式,并写出此抛物线的对称轴和顶点坐标;
(2)如果以点
为顶点的四边形为平行四边形,求
的值;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041f81a26abfcb8a540ee721dc13e3bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4fd4da08956db1f206c8ea026f4e52d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76fc88ea5357b675c01e93c62fea338d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8649ce18c628d0e03e72cef541f8284f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/affbbbc112ab58e6b7066ce1c7699db0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/28/0f462bb2-8e50-4b2d-9641-a811cf5eb92a.png?resizew=360)
(1)求抛物线的解析式,并写出此抛物线的对称轴和顶点坐标;
(2)如果以点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/785d3ff94a50db973eae5c6732203c32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解答题-证明题
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【推荐2】如图,抛物线
与x轴分别相交于A,B两点(点A在点B的左侧),C是
的中点,平行四边形
的顶点D,E均在抛物线上.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/26/62ae711f-7a3c-47a5-a3f1-26b83fc1a5aa.png?resizew=406)
(1)直接写出点C的坐标;
(2)如图(1),若点D的横坐标是
,点E在第三象限,平行四边形
的面积是13,求点F的坐标;
(3)如图(2),若点F在抛物线上,连接
,求证:直线
过一定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/584bec8a7fc89daf2e9a6e6741604629.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32c05247f6998d7a70d31d13be4148c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/26/62ae711f-7a3c-47a5-a3f1-26b83fc1a5aa.png?resizew=406)
(1)直接写出点C的坐标;
(2)如图(1),若点D的横坐标是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32c05247f6998d7a70d31d13be4148c.png)
(3)如图(2),若点F在抛物线上,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
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