如图,在平面直角坐标系中,抛物线
与
轴的交点分别为
和
(点
在点
的左侧),与
轴交于点
,点
是直线
上方抛物线上一动点.
(1)求抛物线的解析式;
(2)如图
,过点
作
轴平行线交
于点
,过点
作
轴平行线交
轴于点
,求
的最大值及此时点
的坐标;
,设点
为抛物线对称轴上一动点,当点
,点
运动时,在坐标轴上确定点
,使四边形
为矩形,请直接写出所有符合条件的点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0c9800e4b992044d16681e77ff6563c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852b303689c31189cd47bb4a3220f9fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c83ebc472717d6ddeeeabeb6dff738a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(1)求抛物线的解析式;
(2)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b82b02a6ebd5ac2b7ef373d296d2bde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3029ea5516e56e8d20594c71929624f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
更新时间:2024-05-27 11:00:44
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相似题推荐
解答题-问答题
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【推荐1】如图,已知直线
与x轴交于点A,与y轴交于点B,抛物线
经过A、B两点,与x轴交于另一个点C,对称轴与直线AB交于点E,抛物线顶点为D.
(2)点M是抛物线在第二象限图象上的动点,是否存在点M,使得
的面积最大?若存在,请求这个最大值并求出点M的坐标;若不存在,请说明理由;
(3)点P从点D出发,沿对称轴向下以每秒1个单位长度的速度匀速运动,设运动的时间为t秒,当t为何值时,以P、B、C为顶点的三角形是等腰三角形?求出符合条件的t的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c608def11fa0e2b34f05592ef1d11fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d88bbd34102b55fa928e8ff83f0d52.png)
(2)点M是抛物线在第二象限图象上的动点,是否存在点M,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a11cb104b04c4e6a1be700e81da279a.png)
(3)点P从点D出发,沿对称轴向下以每秒1个单位长度的速度匀速运动,设运动的时间为t秒,当t为何值时,以P、B、C为顶点的三角形是等腰三角形?求出符合条件的t的值.
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【推荐2】如图,直线
与抛物线
相交于点
和点
,抛物线与
轴的交点分别为
、
点
在点
的左侧
,点
在线段
上运动(不与点
、
重合),过点
作直线
轴于点
,交抛物线于点
.
(1)求抛物线的解析式;
(2)如图
,连接
,是否存在点
,使
是直角三角形?若存在,求出点
的坐标;若不存在,说明理由;
(3)如图
,过点
作
于点
,当
的周长最大时,过点
作任意直线
,把
沿直线
翻折,翻折后点
的对应点记为点
当
的周长最大时:
求出点
的坐标;
直接写出翻折过程中线段
长度的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/527644f53abbcfd2e8457da020cb0262.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90e353c8602f3b5cfdcc7b6255fb6723.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/438a7ce06429b61e3b5f3871f804a82e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7800c8c50aed62ded8b3a547e4b9070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a920a78c48e71749017d40e01caa3a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0e7cf15025c0d3c813c21888ba21dd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/30/737ddfeb-7b17-4597-9f15-d5a3820d4d39.png?resizew=444)
(1)求抛物线的解析式;
(2)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce6c0e9de83f2e64ae33609fc08459d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eadb6f330e2d5325adb08c2b1d80b1ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(3)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ab98fce4c908b9e86193825bf85fc03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a019625b21ba728a67a3f6437709ace4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a019625b21ba728a67a3f6437709ace4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a36a9dc09e4ed89c47993141ea124fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a019625b21ba728a67a3f6437709ace4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1c9ae241fd78126274c65e17990c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c650fe55b7603f106c53ca2423451c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
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解答题-证明题
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较难
(0.4)
【推荐1】已知:如图1,
是
的内角平分线.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/10/a0e8c423-a8cf-44d8-a44d-b8278f5d283b.png?resizew=418)
(1)求证:
;
(2)如图2,
是在
的内部截
,
在
上.求证:
;
(3)如图3,已知四边形
中,
,
,
,
,
;直接写出四边形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/10/a0e8c423-a8cf-44d8-a44d-b8278f5d283b.png?resizew=418)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c468eefb03bfa5ffda3bdeef59b10c.png)
(2)如图2,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/585f34b8f80462845450a25f91a285d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0fa1aa5a7a5bb172ed4603f17c8b2c6.png)
(3)如图3,已知四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be66a4dad3eda57de0458eec62752245.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f3ddc1c05906d037a3fd793e1c4ab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ebb33adb2310a6e03918761e68204a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f67ef50cee00745ceeb2628316722f73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/441a92c002129b752085f041139e2e2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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【推荐2】如图,AB是⊙O的直径,点C是弧AB的中点,点D是⊙O外一点,AD=AB,AD交⊙O于F,BD交⊙O于E,连接CE交AB于G.
(1)证明:∠C=∠D;
(2)若∠BEF=140°,求∠C的度数;
(3)若EF=2,tanB=3,求CE•CG的值.
(1)证明:∠C=∠D;
(2)若∠BEF=140°,求∠C的度数;
(3)若EF=2,tanB=3,求CE•CG的值.
![](https://img.xkw.com/dksih/QBM/2018/11/29/2086186929815552/2090134238855169/STEM/c47034cb68cd4ff29eb8a20df31302a9.png?resizew=158)
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名校
【推荐1】已知抛物线
与直线
都经过点
,直线
与抛物线L的对称轴交于点B.
(1)求m的值;
(2)求证:
;
(3)当
时,将抛物线L向左平移
个单位得到抛物线P,抛物线P与抛物线L的对称轴交于点M,且点M在点B的下方.过点A作x轴的平行线交抛物线P于点N,且点N在点A的右侧,求
的最大值,并求出此时n的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2430a7c541b12a48912fe13a6c9f674b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85e1d0e4e1af4cd5f224c3c9d08cf596.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc6349e81a3db522257c07f0e7901d3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85e1d0e4e1af4cd5f224c3c9d08cf596.png)
(1)求m的值;
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ffb030c532aa961eaea0c079c236ce9.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81300110b3e11cece7f1162fe3fb3291.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7961356e38979b6e363f36fb55b63d1.png)
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【推荐2】已知二次函数中x和y的部分对应值如下表:
x … ﹣1 0 1 2 3 …
y … 0 ﹣3 ﹣4 ﹣3 0 …
(1)求二次函数的解析式;
(2)如图,点P是直线BC下方抛物线上一动点,当点P运动到什么位置时,四边形ABPC的面积最大?求出此时P点的坐标和四边形ABPC的最大面积;
![](https://img.xkw.com/dksih/QBM/2016/3/9/1573982329872384/1573982336237568/STEM/6b30efe71af54c44918a7710102e8473.png)
(3)在抛物线上,是否存在一点Q,使△QBC中QC=QB?若存在请直接写出Q点的坐标.
x … ﹣1 0 1 2 3 …
y … 0 ﹣3 ﹣4 ﹣3 0 …
(1)求二次函数的解析式;
(2)如图,点P是直线BC下方抛物线上一动点,当点P运动到什么位置时,四边形ABPC的面积最大?求出此时P点的坐标和四边形ABPC的最大面积;
![](https://img.xkw.com/dksih/QBM/2016/3/9/1573982329872384/1573982336237568/STEM/6b30efe71af54c44918a7710102e8473.png)
(3)在抛物线上,是否存在一点Q,使△QBC中QC=QB?若存在请直接写出Q点的坐标.
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【推荐3】已知:抛物线l1:y=﹣x2+bx+3交x轴于点A,B,(点A在点B的左侧),交y轴于点C,其对称轴为x=1,抛物线l2经过点A,与x轴的另一个交点为E(5,0),交y轴于点D(0,﹣
).
(1)求抛物线l2的函数表达式;
(2)P为直线x=1上一动点,连接PA,PC,当PA=PC时,求点P的坐标;
(3)M为抛物线l2上一动点,
过点M作直线MN∥y轴,交抛物线l1于点N,求点M自点A运动至点E的过程中,线段MN长度的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/533a7b702ada1dd80123e4041271d521.png)
(1)求抛物线l2的函数表达式;
(2)P为直线x=1上一动点,连接PA,PC,当PA=PC时,求点P的坐标;
(3)M为抛物线l2上一动点,
![](https://img.xkw.com/dksih/QBM/2017/9/9/1770473095413760/1770544079429632/STEM/9857bfd9882243f7971d8e3531afb68f.png?resizew=3)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/12/a8998b4f-a1ed-4524-a784-7bb507843336.png?resizew=401)
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【推荐1】已知抛物线
与
轴的交点为
,顶点为
,对称轴为直线
.
(1)求抛物线
的顶点坐标
和对称轴.
(2)抛物线
关于点
对称的抛物线为
,抛物线
的顶点为
,对称轴为直线
,在直线
和直线
上是否分别存在点
、
,使得四边形
为正方形?若存在,请求出
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c3a62ecc5085a6a5dce769b34e491e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13dea1bd3d0dd84b8b6f6ff634c5600c.png)
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解答题-问答题
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较难
(0.4)
【推荐2】如图,抛物线
与x轴交于A、B两点,且B点的坐标为
,经过A点的直线交抛物线于点
.
(1)求抛物线的解析式和直线
的解析式;
(2)点M为直线
上方抛物线上一点,求当四边形
的面积最大时M点的坐标,及最大的面积.
(3)点P为x轴上一点,点Q为抛物线上一点,是否存在点P,使得以A、D、P、Q为顶点的四边形是平行四边形?如果存在,直接写出满足条件的点P的坐标,并把求其中一个点P的坐标的过程写出来;如果不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d88bbd34102b55fa928e8ff83f0d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf457459e1b006052117eb3151f7cf39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8864f206131eacb22476ae806b58e220.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/26/faf3d5ec-0c55-4b81-90a8-a978a7c996c6.png?resizew=267)
(1)求抛物线的解析式和直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(2)点M为直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/836d3a7f9748a85a2d48e08a5d01f397.png)
(3)点P为x轴上一点,点Q为抛物线上一点,是否存在点P,使得以A、D、P、Q为顶点的四边形是平行四边形?如果存在,直接写出满足条件的点P的坐标,并把求其中一个点P的坐标的过程写出来;如果不存在,请说明理由.
您最近一年使用:0次
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真题
【推荐3】如图,抛物线
(a≠0)与x轴、y轴分别交于点A,B,C三点,已知点A(﹣2,0),点C(0,﹣8),点D是抛物线的顶点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/21/0b9d4265-f007-421b-9102-ea4f03569902.png?resizew=399)
(1)求抛物线的解析式及顶点D的坐标;
(2)如图1,抛物线的对称轴与x轴交于点E,第四象限的抛物线上有一点P,将△EBP沿直线EP折叠,使点B的对应点
落在抛物线的对称轴上,求点P的坐标;
(3)如图2,设BC交抛物线的对称轴于点F,作直线CD,点M是直线CD上的动点,点N是平面内一点,当以点B,F,M,N为顶点的四边形是菱形时,请直接写出点M的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc229acc8bf1a2047394bda863b1ea71.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/21/0b9d4265-f007-421b-9102-ea4f03569902.png?resizew=399)
(1)求抛物线的解析式及顶点D的坐标;
(2)如图1,抛物线的对称轴与x轴交于点E,第四象限的抛物线上有一点P,将△EBP沿直线EP折叠,使点B的对应点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
(3)如图2,设BC交抛物线的对称轴于点F,作直线CD,点M是直线CD上的动点,点N是平面内一点,当以点B,F,M,N为顶点的四边形是菱形时,请直接写出点M的坐标.
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