综合与实践
如图,已知正方形OCDE中,顶点
,抛物线
经过点C、点D,与x轴交于A、B两点(点B在点A的右侧),直线
交x轴于点F.
![](https://img.xkw.com/dksih/QBM/2022/5/24/2986464594894848/2990523190829056/STEM/d0c83f22-91ef-48b0-bc7d-27fb94e98673.png?resizew=440)
(1)求抛物线的解析式,且直接写出点A、点B的坐标;
(2)若点G是抛物线的对称轴上一动点,且使
最小,则G点坐标为:______;
(3)在直线
(第一象限部分)上找一点P,使得以点P、点B、点F为顶点的三角形与
全等,请你直接写出点P的坐标;
(4)点M是射线AC上一点,点N为平面上一点,是否存在这样的点M,使得以点O、点A、点M、点N为顶点的四边形为菱形?若存在,请你直接写出点N的坐标;若不存在,请说明理由.
如图,已知正方形OCDE中,顶点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33a62c9695f5a1691c5fe8724fa764b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c468dc5cc34c14a188493a21019e8f83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0c03f0156764e6358d83697ea14c5ed.png)
![](https://img.xkw.com/dksih/QBM/2022/5/24/2986464594894848/2990523190829056/STEM/d0c83f22-91ef-48b0-bc7d-27fb94e98673.png?resizew=440)
(1)求抛物线的解析式,且直接写出点A、点B的坐标;
(2)若点G是抛物线的对称轴上一动点,且使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e21a8039a5ed0803caf60838d12c581c.png)
(3)在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6f7b16d65f1b2b8bea8cf4a83fde925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebcc52a06d806fde891e09a0a389fcd4.png)
(4)点M是射线AC上一点,点N为平面上一点,是否存在这样的点M,使得以点O、点A、点M、点N为顶点的四边形为菱形?若存在,请你直接写出点N的坐标;若不存在,请说明理由.
更新时间:2022-05-30 13:37:55
|
相似题推荐
解答题-证明题
|
困难
(0.15)
解题方法
【推荐1】如图,二次函数
与
轴分别交于A,B两点(点A在点B的左侧),与
轴交于点C,且
,∠BAC的角平分线交
于点D,过D点的直线
与射线AB,AC分别交于E,F.
(1)求该抛物线的解析式;
(2)如图1,证明:当直线
绕点D旋转时,
为定值,并求出该定值;
(3)如图2,在第一象限的抛物线存在点P,使得
,请求出点P的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e59da5115d0dafea24822245f92c48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6541748f10d7ed5f755f456536dbc829.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(1)求该抛物线的解析式;
(2)如图1,证明:当直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a790208e4a75f9a2dd3d166ee7bd6ba7.png)
(3)如图2,在第一象限的抛物线存在点P,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d1ef6c6f97cd64ab9d45b43fdcc2119.png)
![](https://img.xkw.com/dksih/QBM/2021/4/12/2698248639135744/2700146938118144/STEM/67be27f1-e384-4273-8095-1201d5931abe.png)
您最近一年使用:0次
解答题-问答题
|
困难
(0.15)
名校
【推荐2】如图,在平面直角坐标系中,点
为坐标原点,直线
交
轴于点
,
轴于点
,抛物线
与
轴交于
,
两点,交
轴于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/13/67f0df83-cf9b-42eb-a2b2-a203c68d7931.png?resizew=174)
(1)求抛物线的解析式;
(2)
在第三象限抛物线上,
点横坐标为
,连接
、
,
的面积为
,求
关于
的函数关系式(不要求写自变量
的取值范围);
(3)在(2)的条件下,
绕点
逆时针旋转,与线段
相交于点
,且
,过点
作
交
于
,
轴于点
,连接
,若
,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c608def11fa0e2b34f05592ef1d11fd8.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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/974cf6ed500e27d2a9928db300645f4f.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/13/67f0df83-cf9b-42eb-a2b2-a203c68d7931.png?resizew=174)
(1)求抛物线的解析式;
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd17a66a2af938c89e46f22e4d893b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7fbd6b9f85c086ac95562fe45e8d969.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)在(2)的条件下,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ad2af604090d03934e0c0c00ff64c06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7459863f058993e17b7dcf902053eccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb2475280f33550ffe75bb5c8a7b120e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
您最近一年使用:0次
解答题-问答题
|
困难
(0.15)
名校
解题方法
【推荐3】在平面直角坐标系中,抛物线y=
x2+bx+c交x轴于A(﹣3,0),B(4,0)两点,交y轴于点C.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/23/ffa071db-8993-47b5-a24d-3201b130dee4.png?resizew=486)
(1)求抛物线的表达式;
(2)如图,直线
与抛物线交于A,D两点,与直线BC交于点E.若P(m,0)是线段AB上的动点,过点P作x轴的垂线,交抛物线于点F,交直线AD于点G,交直线BC于点H.
①当m<0时,是否存在一个m值,使得S△EFG=S△OEG,如果存在,求出m的值,如果不存在,请说明理由;
②当△EFH是以点F为直角顶点的等腰直角三角形时,求出点P的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f30d314a642667fef559032264647366.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/23/ffa071db-8993-47b5-a24d-3201b130dee4.png?resizew=486)
(1)求抛物线的表达式;
(2)如图,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1542f82574c5224cc3f344733a0b563b.png)
①当m<0时,是否存在一个m值,使得S△EFG=S△OEG,如果存在,求出m的值,如果不存在,请说明理由;
②当△EFH是以点F为直角顶点的等腰直角三角形时,求出点P的坐标.
您最近一年使用:0次
解答题-证明题
|
困难
(0.15)
名校
解题方法
【推荐1】如图,已知
为等腰直角三角形,
且
,
为
上一点,且
,过
作
且
,连接
.
![](https://img.xkw.com/dksih/QBM/2021/5/11/2718893352689664/2722303824953344/STEM/31bfcf69-c95c-44c7-bddf-46ab99ea8323.png)
(1)如图1,已知
,连接
、
,求
的面积;
(2)如图2所示,
为
上一点,连接
,作
交
于
点,求证:
;
(3)已知
面积为
,
为射线
上一点,作
,交射线
于
,连接
,点
为
的中点,当
有最小值时,请直接写出
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c10d461a7c0b86a2f09c2ea17f38260e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7595bdaea3dfa548c0fcfe3708387476.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58cc90fee532e50d319081d571410421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fa1b5b6051d500fe6c6f1c19c7ee49f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://img.xkw.com/dksih/QBM/2021/5/11/2718893352689664/2722303824953344/STEM/31bfcf69-c95c-44c7-bddf-46ab99ea8323.png)
(1)如图1,已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c105d6ba18fbb0581fb982175e2eac9.png)
(2)如图2所示,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/107df819eec2e2078b9ca0b4e08a5b47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b92470791a1b6dc97fd362c6ba16fd8f.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b43432af566fe0b3a5ee6a8eb9cb95a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/107df819eec2e2078b9ca0b4e08a5b47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e4fa04825ac7d071968056322d88be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e4fa04825ac7d071968056322d88be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7516bfacb88ea94d2d5156408e9ee25e.png)
您最近一年使用:0次
解答题-证明题
|
困难
(0.15)
【推荐2】人教版初中数学教科书八年级上册第83页第12题告诉我们,两个共顶点的不重合等边三角形,分别连接对侧顶点构成的两个三角形会全等.
(1)如图1所示,
、
都是等边三角形,请证明
;
(2)如图2,在第(1)问的条件下,设
、
交于
,连接
,求
的值;
(3)将共顶点的等边三角形改为共直角顶点的等腰直角三角形后,如图3,等腰直角三角形
与等腰直角三角形
共直角顶点
,连接
、
,
,
为
上一点,
,连接
,
为
上一点,
,连接
,过
作
于
,若
,
,
,求
的值.
(1)如图1所示,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80651f797ab9dccfd7163c605b091ad5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cc739ed6cad807732d286b9dbda2174.png)
(2)如图2,在第(1)问的条件下,设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff87d6106960ecddcec2e563c5e5b246.png)
(3)将共顶点的等边三角形改为共直角顶点的等腰直角三角形后,如图3,等腰直角三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/152cfd5011c94e02c1a9cbbd4d8f58bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58334c10c9ba74e8d05939c52917c063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a6f7091bf0bb4b27a436d7cc29ca9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e72b2e1ff83e95df048745322982451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23359a4cd5dfcd56a91e26ed8010ac03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6f0924f5e8c41bc712466dade948a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bf997c939e24cf5509f92877736067a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ea780309e0beeb78928470c524506bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41cfeb35addf27f2379a8e5f87c9b952.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9d17ae1595505963986665f3741cc74.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/24/a650b0d0-5f1b-43c0-a782-3ec04b92cf80.png?resizew=621)
您最近一年使用:0次
解答题-证明题
|
困难
(0.15)
【推荐1】如图,菱形
中,
,
,点
是射线
上的一个动点,将线段
绕点
顺时针旋转
到
,连接
、
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/4/eb7ab972-af7d-4ef9-ada3-6026c7ad5190.png?resizew=233)
(1)求证:
;
(2)如图,连接
,
,当
与
相似时,求
的长;
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/4/59f9844a-660b-463c-9d3a-7484ceb952a9.png?resizew=235)
(3)当点
关于直线
的对称点落在菱形的边上时,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34db5860990e51ba31edc8cdd077c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b74e2b6dae540571fdd509c4e966b8.png)
![](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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/4/eb7ab972-af7d-4ef9-ada3-6026c7ad5190.png?resizew=233)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a3f5d73bae2ab3a31c353d38382d25.png)
(2)如图,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07fbad473c16df3ff62c1c6b37de6aa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f5a0a6e5b3f489a7032ea5116c96024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/4/59f9844a-660b-463c-9d3a-7484ceb952a9.png?resizew=235)
(3)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/4/ef399106-ead9-4e35-aa8e-2528f8485db9.png?resizew=210)
您最近一年使用:0次
解答题-问答题
|
困难
(0.15)
【推荐2】综合与探究:如图,在平面直角坐标系中,
,
,直线
与坐标轴交于点A,B,点C在x轴的正半轴上.
(1)直接写出A,B,C三点的坐标,并求出直线
的解析式;
(2)若点M从点C出发,以每秒0.5个单位长度的速度沿射线
运动,连接
,设
的面积为S,点M的运动时间为t,直接写出S关于t的函数关系式,并写出自变量的取值范围;
(3)P是y轴上的点,在坐标平面内是否存在点Q,使以A、B、P、Q为顶点的四边形是菱形?若存在,请直接写出点Q的坐标:若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/474f34c6dc5621acad72270d2a49255d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62793dc186129aaa5c3cfad28fccebc8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/14/432cbfa2-42de-4b95-80d7-0b523aed7cb4.png?resizew=203)
(1)直接写出A,B,C三点的坐标,并求出直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
(2)若点M从点C出发,以每秒0.5个单位长度的速度沿射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/971b23e3ee827018557d6c88edd5369a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1165830b314a0dab65ea267e82bd3f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a5e0a51c9e14fb246b0ba0b231c1e3.png)
(3)P是y轴上的点,在坐标平面内是否存在点Q,使以A、B、P、Q为顶点的四边形是菱形?若存在,请直接写出点Q的坐标:若不存在,请说明理由.
您最近一年使用:0次
解答题-问答题
|
困难
(0.15)
名校
【推荐1】如图,
中,
,
,过点
作
边的垂线,交
延长线于点
.
![](https://img.xkw.com/dksih/QBM/2020/10/15/2571494246465536/2572942914748416/STEM/a5116b477bf74b58b63c340d2639f5cf.png?resizew=554)
(1)求线段
的长度;
(2)动点
从点
出发,以每秒1个单位长度的速度,沿
的路径运动,回到点
时运动停止.设点
的运动时间为
.
①连接
、
,当
面积为256时,求
的值;
②连接
、
,当
为等腰三角形时,请直接写出
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4ceaa2fcab33e355f2fdced22734af5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3da16fe2e1ce327bcc7a83495338e735.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/2020/10/15/2571494246465536/2572942914748416/STEM/a5116b477bf74b58b63c340d2639f5cf.png?resizew=554)
(1)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(2)动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/534e0b4426c1722a6765bfd26a2bf03b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
①连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd17a66a2af938c89e46f22e4d893b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df7f9f7952c4be18cb73393047c2ad75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
②连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a855335176fc36a15017f50a8561348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
解答题-问答题
|
困难
(0.15)
名校
【推荐2】如图,
中,
,
,点O是
的中点,动点P从点A出发沿折线
以每秒2个单位长度向终点C运动,连接
,作点A关于直线
的对称点
,连接
、
.设点P运动的时间为t秒.
的面积为______;
(2)用含t的代数式表示线段
的长;
(3)当
时,求t的值;
(4)当点
在
的内部时,直接写出t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6060d9a82ed5405a1ea8cd824448b6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/778cdfe7346279f9695a745fb780e806.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b3f7368811340328acf5be13f499d38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48fce10478485ef01d2318fc3465bb4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
(2)用含t的代数式表示线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff46eb90d8ac2ffb4ed88df324d7173d.png)
(4)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
您最近一年使用:0次