综合与实践
问题情境:数学活动课上,老师给出下述情境:
如图,
是正方形
的对角线,边
在其所在的直线上平移,平移后得到的线段记为
,连接
,
,并过点
作
,垂足为
,连接
,
.
(1)探究展示:线段
在平移过程中,四边形
是什么四边形?说明理由;
(2)拓展再探:判断
,
之间的数量关系和位置关系,并利用图
加以证明;
(3)反思交流:若
,
在平移变换过程中,设
,
,求
与
之间的函数关系式,并求出
的最大值.
问题情境:数学活动课上,老师给出下述情境:
如图,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c118858379800688c993a8b61270b356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88b9fd7a5b10127e9d60f0e3fa335f72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/24/293d02e8-fbd5-44e2-a3b3-97d42603069f.png?resizew=319)
(1)探究展示:线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bddc68ed03fe7fd1fe30a5e626ba435.png)
(2)拓展再探:判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
(3)反思交流:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc642a39f2d966d27ba0310a14716772.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f099162b94d10b7f7932ef2087cc0d62.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/d053b14c8588eee2acbbe44fc37a6886.png)
更新时间:2023-08-12 12:10:46
|
相似题推荐
解答题-证明题
|
困难
(0.15)
【推荐1】如图1,矩形
中,
,点E为
边上的动点,连接
.过点E作
于点F,点G为
的中点,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/b2e1c9b3-851b-4a45-a27d-40f30bab9136.png?resizew=260)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/98a774ff-bac3-4956-8e57-088a1a785b9a.png?resizew=295)
(1)求证:
;
(2)设
,
的面积为S,
①求S与x的函数关系式;
②如图2,点M,N分别在
,
上,且
,
,连接
,当
取最小值时,求S的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/154bca0523c33770045fed4426a9e00b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c672f693a7e75a7bae4936dcb1920430.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/273f73210adbef2f03ad8d07bba68231.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/b2e1c9b3-851b-4a45-a27d-40f30bab9136.png?resizew=260)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/98a774ff-bac3-4956-8e57-088a1a785b9a.png?resizew=295)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f73a59ad97196490e5a415732c0a2b.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c29bf5a05dd46f6e03dfd22c32f7ce1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4364713d318c134525c76816cac75f27.png)
①求S与x的函数关系式;
②如图2,点M,N分别在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd163b57a14adc55b34c940a090673d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5b211e09882e0106aac524801eb4a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0bc7229550fb16f01e15d1994bfd95a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf622f61e510a710ef501607f508c20b.png)
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解答题-证明题
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解题方法
【推荐2】如图1,已知抛物线
与
轴交于
、
两点,
点在
点的左侧,点
在
轴的负半轴上,
,点
为抛物线顶点,抛物线的对称轴
交
轴于点
,连接
.过点
的直线
与
轴、
、抛物线分别交于点
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/7/7c2bee76-46a3-40d2-9b9e-19ddb1490245.png?resizew=167)
(1)求抛物线的解析式.
(2)
______,点
的坐标为______.
(3)如图2,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/7/698db884-cf77-4444-8cda-f0d0fc64de75.png?resizew=167)
①证明:四边形
为菱形.
②
_______.
(4)平面内存在的点
使以
为顶点的四边形是平行四边形,请直接写出点
坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe6337d68cd5653767e3a1889b8b2e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/311497849126f1aaf1da0ec75602eabf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40d398e31d27052f0b689bb30706faac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e675a92cad72c65aa4071b9d9e226090.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47c7286f72dc7943437b9bc11d47357a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cf5b86308e9f777a6611503ba8d0e9e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/7/7c2bee76-46a3-40d2-9b9e-19ddb1490245.png?resizew=167)
(1)求抛物线的解析式.
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b7dc2816d332f8761bfe2db1d9db87e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(3)如图2,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dafe9eb0affed3c8288341bc14a71bec.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/7/698db884-cf77-4444-8cda-f0d0fc64de75.png?resizew=167)
①证明:四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d56813438d04ef9c563206a6d85ef94.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/802c5e3b985d830a39df03cc4985d0c2.png)
(4)平面内存在的点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a868a7cc5fb1aef3c21d390197483f38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
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解答题-证明题
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困难
(0.15)
名校
【推荐1】【证明体验】
(1)如图①,在
和
中,
,
,
,连接
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/16/01cf5c7e-3dd9-40b6-8da6-38532fadf7e5.png?resizew=456)
求证:
;
(2)【思考探究】如图②,在①的条件下,若
,
,
,
,求
的长;
(3)【拓展延伸】如图③,在四边形
中,
,
,
,
,
,求
的值.
(1)如图①,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8abfdaab699cfe51bb9678110ad6aee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d212c1709b8e72a055cf1b5381ef64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/16/01cf5c7e-3dd9-40b6-8da6-38532fadf7e5.png?resizew=456)
求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/421291381be28da4bd16560fd383b4a9.png)
(2)【思考探究】如图②,在①的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02b6d19fedaf8488f9637cd64efbca83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e792b0ef3d542237ed0903194597651.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
(3)【拓展延伸】如图③,在四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de8cc58ef27567f0ab06eb1012aec330.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11c85409e4c685f7dbadae2de3cf9a09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eec617c9f047d176ce3b2b49007935cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0636e0c3ae734c1ac05ef4d53b1f2a92.png)
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解答题-作图题
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困难
(0.15)
名校
【推荐2】问题提出
(1)如图1,
中,
,请在平面内再找一点P,使得
,试画出P点;
问题探究
(2)如图2,在平行四边形
中,
,对角线
的长为6,求平行四边形
面积的最大值;
问题解决
(3)如图3,某景区有一条笔直的河流
,在这段河流
的中点处有一个游船码头P,现准备过P修建一条长为100米的笔直的小路
,并在道路的尽头C点安装一个张角为
(即
)的高清摄像头以观测
段河流的游人安全,求摄像头能观测区域(
)的最大面积.(结果保留根号)
(1)如图1,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26fdd8e57562ba94e10e7f1d770826d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b15b82151bff7cc0238d2034a6129f0.png)
问题探究
(2)如图2,在平行四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f945a69cf7e8213e50622125cde652f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
问题解决
(3)如图3,某景区有一条笔直的河流
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1cde7aace5b888a1a1c26fb911e2f49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86a0946888ae70f1d37116c2d3867720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/15/f8520f80-6197-49c2-ae59-c973a217aead.png?resizew=425)
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解答题-问答题
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困难
(0.15)
真题
解题方法
【推荐1】如图,在平面直角坐标系中,抛物线
与
轴交于
两点,与
轴交于点
,且点
的坐标为
点
在这条抛物线上,且不与
两点重合,过点
作
轴的垂线与射线
交于点
,以
为边作
使
点
在点
的下方,且
设线段
的长度为
,点
的横坐标为
.
(1).求这条抛物线所对应的函数表达式;
(2).求
与
之间的函数关系式;
(3).当
的边
被
轴平分时,求
的值;
(4).以
为边作等腰直角三角形
,当
时,直接写出点
落在
的边上时
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec85de9994f0b3d4763aa8a078897240.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7d8139573942f3c374ec3406494a9a2.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bfaf0912949f70faa85fd487b0fd0e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2d7ba7d9b95ff8882782d10590928e1.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8b59edc7bebba9ddf337c107a8d2162.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13420017b6308227b3cd9b8becb568f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccbb43653dbac8a3944f9fbba46e757e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(1).求这条抛物线所对应的函数表达式;
(2).求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3).当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d51de19aef908128a8a02f87790137e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
(4).以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d5fed6f61cf33e780586ad8e3234ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1464ddc459a7d19e2ff4e322c171e123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7189182cc23d759be2764d141952737b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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困难
(0.15)
名校
【推荐2】如图,在
中,
,
分别为
的高.
,
,连接
,求
的长;
(2)如图2,连接
,将
绕点E逆时针旋转
到
,连接
,G为线段
上一点,连接
.若
,求证:
;
(3)如图3,若
,P是线段
上一动点,将线段
绕着点C逆时针旋转
至线段
,连接
.当
取得最小值时,请直接写出
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b27e47690ed332c573186992b6d25654.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6b0a3fa475b24f57ecd79c681259561.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf9ad150cb1e4cd8977d4cc3d99be17c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd946dad8b716592833a7bc14045a6d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
(2)如图2,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.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/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2839d69901cbaa0346130931090ceb24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca7c766967cd1549d874dcb9cddb4cb9.png)
(3)如图3,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c5e845e9cdb524965853eaec87e15b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f53330c107f8245290a5a42c3d356acd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30daf5241e554a4fc148e73e28ceb317.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3525ddc5153fada64eaf14e50b536542.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5fa7dd60b071d132afbfdaf170c1020.png)
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困难
(0.15)
【推荐1】如图,在平面直角坐标系中,抛物线
与
轴交于
,
,与
轴交于点
.
![](https://img.xkw.com/dksih/QBM/2022/5/15/2979858675736576/2988480589185024/STEM/6c6f0c8b66f64877aa3914d46bc9c3ac.png?resizew=382)
(1)求抛物线的解析式;
(2)如图,
为直线
上方的抛物线
上任意一点,
,垂足为
,求线段
长的最大值.
(3)将抛物线
沿射线
平移,
,
的对应点分别为
,
,当以点
,
,
为顶点的三角形是以
为腰的等腰三角形时,请直接写出点
的坐标,并任选其中一个点的坐标,写出求解过程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c6bc57fa426449aa2b226fbaed7a05e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0929421a6188c3122442866b0b85a5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316ba5cbb31299d683ac6c7dd795db85.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/2022/5/15/2979858675736576/2988480589185024/STEM/6c6f0c8b66f64877aa3914d46bc9c3ac.png?resizew=382)
(1)求抛物线的解析式;
(2)如图,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c6bc57fa426449aa2b226fbaed7a05e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bef7eab528a8dd3e3f328de3b3ac80ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35d58f9019097bd05037aefd5c322916.png)
(3)将抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c1a89c495be618bca7c4e6af85ba8ec.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/5963abe8f421bd99a2aaa94831a951e9.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/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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解答题-问答题
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困难
(0.15)
【推荐2】如图,在平面直角坐标系中,点A的坐标为
,点B的坐标为
,直线
经过点A和点B,直线
与x轴交于点C,与y轴交于点D,直线
与直线
相交于点P.
![](https://img.xkw.com/dksih/QBM/2022/4/28/2974151783219200/2977936752549888/STEM/100ec624-2d79-49a5-82d2-bab6685d5ed1.png?resizew=553)
(1)求直线
的表达式和点P的坐标;
(2)正方形EFGH的边EF与线段AO重合,点G在x轴的正半轴上,将正方形EFGH沿射线AB的方向平移,边EH始终与x轴平行.已知正方形EFGH以每秒5个单位的速度匀速移动(点E移动到点B时停止移动),设移动时间为t秒
;
①正方形EFGH在移动过程中,当点F落在直线
上时,请求出此时t的值;
②正方形EFGH在移动过程中,设正方形EFGH与
重合部分的面积为S,当
时,请直接写出此时t的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c51b2293247eac7b97b685a44987efb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5841432c91e54a308c33c062fc17f745.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd4c67342406eb91d9bf43df3bc87ca5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://img.xkw.com/dksih/QBM/2022/4/28/2974151783219200/2977936752549888/STEM/100ec624-2d79-49a5-82d2-bab6685d5ed1.png?resizew=553)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
(2)正方形EFGH的边EF与线段AO重合,点G在x轴的正半轴上,将正方形EFGH沿射线AB的方向平移,边EH始终与x轴平行.已知正方形EFGH以每秒5个单位的速度匀速移动(点E移动到点B时停止移动),设移动时间为t秒
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cea72e0c37257bcfd85a59ef8dd0f80.png)
①正方形EFGH在移动过程中,当点F落在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
②正方形EFGH在移动过程中,设正方形EFGH与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c025ee3317be1099b7bf03a11e37ed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef019150ebd21f4746cfd5068c39e62d.png)
您最近一年使用:0次