如图,在平面直角坐标系中,已知抛物线
与
轴交于
两点(点
在点
的左侧),与
轴交于点
,顶点为
,连接
.
的坐标;
(2)如图1,连接
并延长交
的延长线于点
,求
的度数;
(3)若点
是抛物线对称轴上一动点,点
为坐标平面内一点,是否存在以
为边,点
、
、
、
为顶点的四边形是菱形,若存在,请直接写出点
的坐标;若不存在,请说明理由.
![](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/0565aa433ff7dbba0d3867ba4b75e2f6.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(2)如图1,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a55a1a244f81097e05e715b69580faa.png)
(3)若点
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/ac047e91852b91af639feec23a9598b2.png)
更新时间:2024-05-02 07:26:38
|
相似题推荐
解答题-作图题
|
困难
(0.15)
【推荐1】二次函数y=a(x﹣3)2﹣1的图象记为抛物线C,它与x轴交于点A(2,0)、B,其对称轴与x轴交于点E,顶点为D,点P(m,n)在抛物线C上(异于点A、B、D).小聪以点E为位似中心,把A、B、D、P为顶点的四边形按相似比2:1放大,并画出了过A、B、D的对应点的抛物线C1(如图),小明认为还可以找到一条过A、B、D的对应点的抛物线C2.
(1)a=______;抛物线C2对应的函数表达式为______;
(2)试证明:点P的对应点在抛物线C1或C2上;(选择其中一种情形证明)
(3)设点P(1,3)落在抛物线C1、C2上的对应点分别为P1、P2,点Q在这个平面直角坐标系上,P1Q=2
,DQ+
P2Q的最小值为______.(直接写出结果)
(1)a=______;抛物线C2对应的函数表达式为______;
(2)试证明:点P的对应点在抛物线C1或C2上;(选择其中一种情形证明)
(3)设点P(1,3)落在抛物线C1、C2上的对应点分别为P1、P2,点Q在这个平面直角坐标系上,P1Q=2
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50690dab38f4512eb72e18b7f86cf6f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/21/6ec1b8b6-4a20-44c6-ad60-56b0355f8ac0.png?resizew=251)
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解答题-问答题
|
困难
(0.15)
【推荐2】抛物线
过
,
,
三点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/14/acc58695-6f39-45b5-9972-2d6a6fc2b639.png?resizew=363)
(1)求抛物线的表达式;
(2)如图①,点K与点C关于抛物线对称轴对称,抛物线上一点D在线段AK的上方,
交AK于点E,若满足
,求点D的坐标;
(3)如图②,F为抛物线顶点,过A作直线
,若点P在直线l上运动,点Q在x轴上运动.是否存在这样的点P、Q,使得
与
相似(P与F为对应点),若存在,直接写出P、Q的坐标及此时
的面积;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b7484ca3ca0c467feb7310ec6c5057.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98b2cc0d2f6d3eee9a33db83e0c0830d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/266c42a10c13c00114ae371b2d9f728d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/165741172ab545447e916a6923cae7f9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/14/acc58695-6f39-45b5-9972-2d6a6fc2b639.png?resizew=363)
(1)求抛物线的表达式;
(2)如图①,点K与点C关于抛物线对称轴对称,抛物线上一点D在线段AK的上方,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32c38dfd14dde969702dff97ef2270f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6c7c7ca20cb2b9e0d9d97ba2af5d242.png)
(3)如图②,F为抛物线顶点,过A作直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5f56d4a08e50b95c1033c1ea3380c64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f02ed682ee981bfa4aeb2de96771be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004104bafb5f30338123d4ea2b7fedde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f02ed682ee981bfa4aeb2de96771be.png)
您最近一年使用:0次
解答题-问答题
|
困难
(0.15)
【推荐1】如图,已知二次函数
的图像交x轴于点
,
,交y轴于点C.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/19/1043187c-c686-4d85-91b8-2dbd1d5e0f97.png?resizew=275)
(1)求这个二次函数的表达式;
(2)如图1,点M从点B出发,以每秒
个单位长度的速度沿线段BC向点C运动,点N从点O出发,以每秒1个单位长度的速度沿线段OB向点B运动,点M,N同时出发.设运动时间为t秒(0<t<5).当t为何值时,
的面积最大?最大面积是多少?
(3)求t为何值时,
是等腰三角形?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d88bbd34102b55fa928e8ff83f0d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0929421a6188c3122442866b0b85a5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54fe2c124d5bbbbe666ee145cd454b6b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/19/1043187c-c686-4d85-91b8-2dbd1d5e0f97.png?resizew=275)
(1)求这个二次函数的表达式;
(2)如图1,点M从点B出发,以每秒
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38d0469336f71edd52dc9148c67db052.png)
(3)求t为何值时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38d0469336f71edd52dc9148c67db052.png)
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解答题-计算题
|
困难
(0.15)
【推荐2】如图①,一次函数
的图像交反比例函数
图像于点
,
,交
轴于点
,点
为
.
(2)如图②,点
为反比例函数在第一象限图像上的一点,过点
作
轴垂线,交一次函数
图像于点
,连接
,若
是以
为底边的等腰三角形,求
的面积;
(3)如图③,将一次函数
的图像绕点
顺时针旋转
交反比例函数
图像于点
,
,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd9a42368092c83d7082a34d1008e72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edc4622a5f65ffbece28e09206b0cb8d.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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6c044bcf4b87cd1575198ab30c3a037.png)
(2)如图②,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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/8fd9a42368092c83d7082a34d1008e72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38d0469336f71edd52dc9148c67db052.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38d0469336f71edd52dc9148c67db052.png)
(3)如图③,将一次函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd9a42368092c83d7082a34d1008e72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edc4622a5f65ffbece28e09206b0cb8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
您最近一年使用:0次
解答题-证明题
|
困难
(0.15)
【推荐1】已知:
内接于
,过点
作
,垂足为点
,
.
(1)如图1,求证:
;
(2)如图2,点
在
上,连接
,
为
中点,连接
,
.求证:
;
(3)如图3,在(2)的条件下,延长
、
分别交
于点
、
,
、
的延长线相交于点
,连接
,若
,
,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70734a8e672376bb0bd1522e229f86a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fe957337517d6ef00c9e6fd59c49d0d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/8/ea91bf65-2b1f-410c-97f8-10d39af37800.png?resizew=591)
(1)如图1,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
(2)如图2,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e009108343afaa2438dd9ebc1bf46547.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d59461614e585c966d847c512e5b92d.png)
(3)如图3,在(2)的条件下,延长
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6655e2fa64a32cd12fe0279afd65d73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55be5081369077cc185b746fa783ee09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a94b1e3395ab1caba285ca0a587542be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8c8034aef9ecb15c709331282b96eeb.png)
您最近一年使用:0次
解答题-证明题
|
困难
(0.15)
【推荐2】已知:点
是
边
所在直线上的一个动点(点
与点
,
不重合),
,
,连接
,点
绕点
顺时针转
得到点
,连接
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/10/2acaa163-6c8c-4ba2-b059-8feef8b91b2b.png?resizew=403)
(1)如图1,当点
在线段
的延长线上时,请你判断线段
与线段
之间的关系,并证明你判断的结论.
(2)如图2,当点
在线段
上,且
时,直接写出四边形
的面积.
(3)点
绕点A逆时针转
得到点
,连接
,
,
,当
时,直接写出线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c3e9ef3e849788645552cfb0735d987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/10/2acaa163-6c8c-4ba2-b059-8feef8b91b2b.png?resizew=403)
(1)如图1,当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(2)如图2,当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d78524f98b01fa1dadfd277939665b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9df19df3b0eb0eedd2b9eaa440996fd8.png)
(3)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adb34acf4ee03bf3f3801ab644a0e209.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
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【推荐1】如图,在平面直角坐标系中,矩形OABC的边OA在x轴的负半轴上,边OC在y轴的正半轴上,且OA=1,tan∠ACB=2,将矩形OABC绕点O按顺时针方向旋转90°后得到矩形ODEF.点A的对应点为点D,点B的对应点为点E,点C的对应点为点F,抛物线y=ax2+bx+2的图象过点A,C,F.
(1)求抛物线所对应函数的表达式;
(2)在边DE上是否存在一点M,使得以O,D,M为顶点的三角形与△ODE相似,若存在,求出经过M点的反比例函数的表达式,若不存在,请说明理由;
(3)在x轴的上方是否存在点P,Q,使以O,F,P,Q为顶点的平行四边形的面积是矩形OABC面积的2倍,且点P在抛物线上,若存在,请求出P,Q两点的坐标;若不能存在,请说明理由;
(4)在抛物线的对称轴上是否存在一点H,使得HA﹣HC的值最大,若存在,直接写出点H的坐标;若不存在,请说明理由.
(1)求抛物线所对应函数的表达式;
(2)在边DE上是否存在一点M,使得以O,D,M为顶点的三角形与△ODE相似,若存在,求出经过M点的反比例函数的表达式,若不存在,请说明理由;
(3)在x轴的上方是否存在点P,Q,使以O,F,P,Q为顶点的平行四边形的面积是矩形OABC面积的2倍,且点P在抛物线上,若存在,请求出P,Q两点的坐标;若不能存在,请说明理由;
(4)在抛物线的对称轴上是否存在一点H,使得HA﹣HC的值最大,若存在,直接写出点H的坐标;若不存在,请说明理由.
![](https://img.xkw.com/dksih/QBM/2017/6/14/1708551598833664/1709695312289792/STEM/673cab32-5441-4fb8-9c82-115570a751d3.png?resizew=211)
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【推荐2】在平面直角坐标系
中,抛物线
(
,
,
为常数)经过点
,
.平行四边形
的顶点
,
的坐标分别是
,
,其中
.
(1)当
,
,
时,求:
①求抛物线的顶点坐标;
②求点
的坐标(用含
的式子表示);
(2)对于任意的
,当
,
的值变化时,抛物线会不同,记其中任意两条抛物线的顶点为
,
(
与
不重合),则命题“对所有的
,
,当
时,一定不存在
的情形.”是否正确?请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d2087d218507632fe7be1d273a0fbf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fabe33b24e9cabf7a5530bc75d37da2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f9c0002b13f6cae093cd9dc9f19941b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d14f816cb1ab0179bdce33b961ffc4a.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e69866076dcff686a05e9e91e61e68.png)
①求抛物线的顶点坐标;
②求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)对于任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db0351c8e23e88296bedd7e33fc31882.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c71152396d26b0c146e6a3c042bbdae9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6a7acac680bf2546d9d0c8eacbeb02b.png)
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