1 . 如图,在平面直角坐标系中,A,B坐标分别为
、
,且a,b满足:
,现同时将点A,B分别向下平移4个单位,再向左平移1个单位,分别得到点A,B的对应点C,D,连接
.
(1)求C,D两点的坐标及四边形
的面积;
(2)点P是线段
上的一个动点,连接
,当点P在
上移动时(不与B,D重合),
的值是否发生变化,并说明理由;
(3)已知点M在y轴上,且点D在
的外部,连接
,若
的面积与四边形
的面积相等,求点M的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d8da179d60dd9ec6ece6de442ae1b06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc6d16f694b64db31b21bc72f1c7c6be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65ab3dd74763d928ac6150e6770bf67f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e01afc45f8c7cf4a564b0e278db6a493.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/12/82aaec25-67aa-45c7-a9b5-2f7421aa1bd4.png?resizew=316)
(1)求C,D两点的坐标及四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/520f8abda6a85e7ef6f281fc2df853fa.png)
(2)点P是线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19cad9d380e34388b2e129d89c845568.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31dfe4a44fd16d3141a3f21d27da0db6.png)
(3)已知点M在y轴上,且点D在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a11cb104b04c4e6a1be700e81da279a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ae341284f7ae187f9d22e2db19e35c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b9f0296c53918018745f4e3906e2dd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/520f8abda6a85e7ef6f281fc2df853fa.png)
您最近一年使用:0次
2 . 对于给定的两点
,若存在点
,使得三角形
的面积等于1,则称点
为线段
的“单位面积点”,已知在平面直角坐标系中,
为坐标原点.点
,
,
.若将线段
沿
轴正方向平移
个单位长度,使得线段
上存在线段
的“单位面积点”,则
的值可以是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f44755c5fee4b90266eac73ad47a128.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22ce50ba5e349425274f05d46d120a74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/248b75c2ba3d6f870b1a7255e652b8b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b27f9b02c9137dad05fb9ced1f0b9683.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91a55fdfb9987e17ec66e49232974b1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
A.0.5 | B.1.5 | C.2.5 | D.3.5 |
您最近一年使用:0次
2023-09-15更新
|
648次组卷
|
3卷引用:7.2.2用坐标表示平移
3 . 在平面直角坐标系中,
为原点,
是等腰直角三角形,
,
,点
在
轴的负半轴上,点
在第二象限,矩形
的顶点
,点
在
轴的正半轴上,点
在
轴的正半轴上.将
沿
轴向右平移,得到
,点
,
,
的对应点分别为
,
,
.
![](https://img.xkw.com/dksih/QBM/2023/4/12/3214972073730048/3217145556582400/STEM/dbe59ecfa6ca4b7eba076b79c5da86b9.png?resizew=616)
(1)如图1,当
经过点
时,求点
的坐标;
(2)设
,
与矩形
重叠部分的面积为
;
①如图②,当
与矩形
重叠部分为五边形时,
与
相交于点
,
分别与
,
交于点
,
,试用含有
的式子表示
,并直接写出
的取值范围;
②请直接写出满足
的所有
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74625390340982140e449e07663579a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30e0e5b5ed61d1e8c22d63050a7e9780.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b4a9c9a8fd37d0004b5652e3d852405.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/607543bb9f55b8a141ed2d6cf0e1a20b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6419152065edb8cabf887b65adb4a73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/74625390340982140e449e07663579a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d95028c7c7fae098329550c4b3dcd6cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b3bd5e6bc2a0a277d279bb01af9584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12fe32dfbd66709875c5b9f79c9496da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b1a5427d8ff23df0f3ec194756c84c.png)
![](https://img.xkw.com/dksih/QBM/2023/4/12/3214972073730048/3217145556582400/STEM/dbe59ecfa6ca4b7eba076b79c5da86b9.png?resizew=616)
(1)如图1,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cac993aa88ba5337bed673bff28394e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b1a5427d8ff23df0f3ec194756c84c.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98ec5b34559d44ba345133399644b485.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d95028c7c7fae098329550c4b3dcd6cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/607543bb9f55b8a141ed2d6cf0e1a20b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
①如图②,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d95028c7c7fae098329550c4b3dcd6cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/607543bb9f55b8a141ed2d6cf0e1a20b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cece895cbddf9d1f37f75e3b6346edda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cac993aa88ba5337bed673bff28394e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.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/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
②请直接写出满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52d7f7ca771f6722e51e23a57b7876b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2023-04-15更新
|
1034次组卷
|
3卷引用:2023年天津市西青区中考一模数学试卷
名校
4 . 如图,等腰三角形
中,
,D为
边上一点,E为射线
上一点,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/28/043370d5-174d-4765-b836-b458c23f6d54.png?resizew=509)
(1)如图1,点F在线段
上,连接
、
.若
,
为等边三角形,
,
,求
的长;
(2)如图2,F为线段
的垂直平分线上一点,连接
、
、
,M为
的中点,连接
、
.若
,求证:
;
(3)如图3,
,D为
中点,F为
中点,
与
交于点G,将
沿射线
方向平移得
,连接
、
.若
,直接写出
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](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/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/28/043370d5-174d-4765-b836-b458c23f6d54.png?resizew=509)
(1)如图1,点F在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.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/b57fdd2a3642716fcf5100011eb3ec88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c105d6ba18fbb0581fb982175e2eac9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86338536656046e93b53672ade9a78b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0761165f1176f3a5fe4f7b052832316d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
(2)如图2,F为线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/735056c174e8dd7906257a2a50a962a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7c57b07f75e97d9f84718bd495ebcf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2273ae1ee99cec9c1304323bc9ebf75f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74fd9d9bcbfc57c3e14770ac8c11c987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c66697c06cd7cc692d5655e01f431836.png)
(3)如图3,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b57fdd2a3642716fcf5100011eb3ec88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bc727c642cbc2181476b7dd8eca471e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2db8af15cdbc41b7dc73c418a70f46b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/943712a5e96b16cc15d775cc4687237e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb97aff0960e2640314888a38e7169c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb6e53c8957930ea2b4812bd18247e2b.png)
您最近一年使用:0次
名校
5 . 在平面直角坐标系xOy中,对于点A,规定点A的
变换和
变换.
变换:将点A向左平移一个单位长度,再向上平移两个单位长度;
变换:将点A向右平移三个单位长度,再向下平移一个单位长度
(1)若对点B进行
变换,得到点(1,1),则对点B进行
变换后得到的点的坐标为 .
(2)若对点C(m,0)进行
变换得到点P,对点C(m,0)进行
变换得到点Q,
,求m的值.
(3)点D为y轴的正半轴上的一个定点,对点D进行
变换后得到点E,点F为x轴上的一个动点,对点F进行
变换之后得到点G,若
的最小值为2
,直接写出点D的坐标 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
(1)若对点B进行
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
(2)若对点C(m,0)进行
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/731016f5081dca7e5726598d757c0449.png)
(3)点D为y轴的正半轴上的一个定点,对点D进行
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e2d0991f7c3532686036301b32095da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4056761b8f826eeb6ad8c9a151d3c9c.png)
您最近一年使用:0次
2022-05-18更新
|
707次组卷
|
7卷引用:北京市上地实验学校2021-2022学年八年级下学期期中数学试题
北京市上地实验学校2021-2022学年八年级下学期期中数学试题(已下线)专题3.1 位置与坐标-【帮课堂】2022-2023学年八年级数学上册同步精品讲义(北师大版)(已下线)猜想03 图形的平移与旋转(考题猜想,常考易错10个考点30题专练)-2023-2024学年八年级数学下学期期中考点大串讲(北师大版)(已下线)压轴真题必刷03 图形的平移与旋转(压轴35题9种题型训练)-2023-2024学年八年级数学下学期期中考点大串讲(北师大版)(已下线)第5章 平面直角坐标系综合测试卷 -【帮课堂】2022-2023学年八年级数学上册同步精品讲义(苏科版)(已下线)第4章 图形与坐标 章末检测卷-2022-2023学年八年级数学上册重难题型全归纳及技巧提升专项精练(浙教版)(已下线)5.2 平面直角坐标系(培优分阶练)-2022-2023学年八年级数学上册课后培优分级练(苏科版)
名校
解题方法
6 . 类比等腰三角形的定义,我们定义:有一组邻边相等的凸四边形叫做“等邻边四边形”.
![](https://img.xkw.com/dksih/QBM/2021/9/9/2804605712105472/2806568951799809/STEM/6cd34872-2422-4b38-b3d4-6e5ebefa1bd3.png)
(1)如图1,在四边形
中,
平分
,
,请说明四边形
是“等邻边四边形”;
(2)如图2,在
中,
,
,
,并将
沿
的平分线
方向平移得到
,连接
,
,要使平移后的四边形
是“等邻边四边形”,应平移多少距离?(即线段
的长)?请直接写出平移的距离;
(3)如图3,“等邻边四边形”
中,
,
,
,试探究
,
,
之间的数量关系(用含
的等式表示).
![](https://img.xkw.com/dksih/QBM/2021/9/9/2804605712105472/2806568951799809/STEM/6cd34872-2422-4b38-b3d4-6e5ebefa1bd3.png)
(1)如图1,在四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be66a4dad3eda57de0458eec62752245.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)如图2,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3f022b18f3b30bccee515df5e47ff00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/884e4bec1a5258d57d8084893d6989bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24963d5acbbdcd6e15c2db04002e0909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa78ace12e5dca050ba2c70880d4d8ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e4312845e24aebd6a7df64ff9fd839a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3f022b18f3b30bccee515df5e47ff00.png)
(3)如图3,“等邻边四边形”
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3570a95f68349fcd9417fcda62e78e7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27e2c20d959ff812b6349efce365a996.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9141dc5c6b1d76c222de38796285d4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
真题
解题方法
7 . 如图,在平面直角坐标系中,抛物线y=x2+bx+c经过点A(﹣1,0),B(0,3),顶点为C.平移此抛物线,得到一条新的抛物线,且新抛物线上的点D(3,﹣1)为原抛物线上点A的对应点,新抛物线顶点为E,它与y轴交于点G,连接CG,EG,CE.
![](https://img.xkw.com/dksih/QBM/2021/7/21/2768775432806400/2768887089930240/STEM/ac32a7da3e19426797cc21848f41c52b.png?resizew=217)
(1)求原抛物线对应的函数表达式;
(2)在原抛物线或新抛物线上找一点F,使以点C,E,F,G为顶点的四边形是平行四边形,并求出点F的坐标;
(3)若点K是y轴上的一个动点,且在点B的上方,过点K作CE的平行线,分别交两条抛物线于点M,N,且点M,N分别在y轴的两侧,当MN=CE时,请直接写出点K的坐标.
![](https://img.xkw.com/dksih/QBM/2021/7/21/2768775432806400/2768887089930240/STEM/ac32a7da3e19426797cc21848f41c52b.png?resizew=217)
(1)求原抛物线对应的函数表达式;
(2)在原抛物线或新抛物线上找一点F,使以点C,E,F,G为顶点的四边形是平行四边形,并求出点F的坐标;
(3)若点K是y轴上的一个动点,且在点B的上方,过点K作CE的平行线,分别交两条抛物线于点M,N,且点M,N分别在y轴的两侧,当MN=CE时,请直接写出点K的坐标.
您最近一年使用:0次
2021-07-21更新
|
1929次组卷
|
4卷引用:专题06 二次函数与平行四边形存在性问题-挑战2022年中考数学压轴题之学霸秘笈大揭秘
(已下线)专题06 二次函数与平行四边形存在性问题-挑战2022年中考数学压轴题之学霸秘笈大揭秘(已下线)卷5-备战2022年中考数学【名校地市好题必刷】全真模拟卷(湖南长沙专用)·第二辑湖南省永州市宁远县中和镇中学2021-2022学年八年级下学期第三次月考数学试卷广西梧州市2021年中考数学试卷真题
8 . 已知:如图①,在矩形
中,
,垂足是E点F是点E关于
的对称点,连接
.
和
的长;
(2)若将
沿着射线
方向平移,设平移的距离为m(平移距离指点B沿
方向所经过的线段长度)当点F分别平移到线段
上时,求出相应的m的值;
(3)如图②,将
绕点B顺时针旋转一个角
,记旋转中的
为
,在旋转过程中,设
所在的直线与边
交于点P与直线
交于点Q是否存在这样的P、Q两点,使
为等腰三角形?若存在,直接写出此时
的长:若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85747230b6d281f1b4b51f43d5bbceca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb73ae3dc9f67bcf303e7c94a37080d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
(2)若将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004104bafb5f30338123d4ea2b7fedde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d82d579a717399137b8c6d475d33cd4f.png)
(3)如图②,将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004104bafb5f30338123d4ea2b7fedde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05df5a26c2b978503e93efa040b99508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004104bafb5f30338123d4ea2b7fedde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d7d2424ca1eb418332f78952cf8337c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32db9dc569742421e53c82c50f05f868.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/129f1d6567bef09b00b7f37894e6dba7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3525ddc5153fada64eaf14e50b536542.png)
您最近一年使用:0次
2021-06-25更新
|
723次组卷
|
5卷引用:第06课 特殊平行四边形 解答题(难点1-动态几何)-2022-2023学年九年级数学上册课后培优分级练(北师大版)
(已下线)第06课 特殊平行四边形 解答题(难点1-动态几何)-2022-2023学年九年级数学上册课后培优分级练(北师大版)34-图形的对称、平移、旋转与位似(已下线)专题03 图形的平移与旋转(考点清单,知识导图+10个考点清单、题型解读)-2023-2024学年八年级数学下学期期中考点大串讲(北师大版)(已下线)专题13几何类比探究题型(4大模型+解题技巧)-2024年中考数学答题技巧与模板构建(全国通用)江苏省苏州市高新区外国语中学2020-2021学年八年级下学期期中数学试卷
19-20八年级下·浙江温州·期末
9 . 如图1,已知一次函数
的图象分别交y轴正半轴于点A,x轴正半轴于点B,且
的面积是24,P是线段
上一动点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/7b5015c3-4cca-48a1-b37b-94684d31cf23.png?resizew=411)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/464e71d4-284f-4564-a87f-daace4a89019.png?resizew=606)
(1)求k值;
(2)如图1,将
沿
翻折得到
,当点
正好落在直线
上时,
①求点
的坐标;
②将直线
绕点P顺时针旋转
得到直线
,求直线
的表达式;
(3)如图2,上题②中的直线
与线段
相交于点M,将
沿着射线
向上平移,平移后对应的三角形为
,当
是以
为直角边的直角三角形时,请直接写出点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/170785d8eaffa7cb618e52c4580e95fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/7b5015c3-4cca-48a1-b37b-94684d31cf23.png?resizew=411)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/464e71d4-284f-4564-a87f-daace4a89019.png?resizew=606)
(1)求k值;
(2)如图1,将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b4dcc093218443f71a046b6df94bbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ba4c18f393d41b60f9345363bb84ffd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12fe32dfbd66709875c5b9f79c9496da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
①求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
②将直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1b36c130a297aa266e8d3e28c568f48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1b36c130a297aa266e8d3e28c568f48.png)
(3)如图2,上题②中的直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1b36c130a297aa266e8d3e28c568f48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68ae0df0b9934dd820e797e501e7074b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b3f7368811340328acf5be13f499d38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c36056f17d09b9dd842f6acdc15a5a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b33bcb6c77eea836834569a04538899.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee6765a83140d745a6de4c85d9b6b50.png)
您最近一年使用:0次
20-21九年级上·全国·课后作业
10 . 已知等边△ABC和Rt△DEF按如图所示的位置放置,点B、D重合,且点E、B(D)、C在同一条直线上.其中∠E=90°,∠EDF=30°,AB=DE=
,现将△DEF沿直线BC以每秒
个单位向右平移,直至E点与C点重合时停止运动,设运动时间为t秒.
(1)试求出在平移过程中,点F落在△ABC的边上时的t值;
(2)试求出在平移过程中△ABC和Rt△DEF重叠部分的面积S与t的函数关系式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b27567d43c5b91382ee3d7ca708ee422.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
(1)试求出在平移过程中,点F落在△ABC的边上时的t值;
(2)试求出在平移过程中△ABC和Rt△DEF重叠部分的面积S与t的函数关系式.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/2/81888a2d-40c0-4591-9663-4c27361f67c8.png?resizew=384)
您最近一年使用:0次