如图,在平面直角坐标系中,A(﹣4,﹣2),B(﹣2,﹣2),C(﹣1,0).
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/10/10925725-07d5-4374-a0af-58f029d2bfe8.png?resizew=228)
(1)将△ABC向右平移5个单位长度,画出平移后的△A1B1C1;
(2)将△ABC绕点C旋转180°,画出旋转后的△A2B2C,并直接写出点A运动的路径长;
(3)请直接写出△B1C1B2的外心的坐标.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/10/10925725-07d5-4374-a0af-58f029d2bfe8.png?resizew=228)
(1)将△ABC向右平移5个单位长度,画出平移后的△A1B1C1;
(2)将△ABC绕点C旋转180°,画出旋转后的△A2B2C,并直接写出点A运动的路径长;
(3)请直接写出△B1C1B2的外心的坐标.
更新时间:2020-02-05 20:42:02
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解答题-问答题
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【推荐1】对于平面直角坐标系
中的点
,若点
的坐标为
(其中
为常数,且
),则称点
为点
的“
属派生点”.
例如:
的“2属派生点”为
,即
.
(1)点
的“3属派生点”
的坐标为 ;
(2)若点
的“3属派生点”
的坐标为
,求点
的坐标;
(3)若点
在
轴的正半轴上,点
的“
属派生点”为
点,且线段
的长度为线段
长度的2倍,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827539d066d1b78e7ef8bc1569864971.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/762bfc20a2da28b3c59225851ea40036.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97546a7253d71138578bcefc8e7b19d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c80c26a794a844127aae7dee87c93b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/762bfc20a2da28b3c59225851ea40036.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
例如:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/915651fc9cdae8de0bf6fddbaad641d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2890b1a30bdccfcdec56b0d636e3cf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61341da9a37e02a84e7bfa77a355aa5e.png)
(1)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f684fa521109cc712c7a4703d51a785.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee6765a83140d745a6de4c85d9b6b50.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee6765a83140d745a6de4c85d9b6b50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ad5a5fb5d195dca0f620035cdd8a996.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(3)若点
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee6765a83140d745a6de4c85d9b6b50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a99e1ad0d6fb0f13be56d09086366c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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【推荐2】如图,在平面直角坐标系中,
是
轴正半轴上一点,
是第四象限一点,
轴,交
轴负半轴于点
,且
,
.
(1)求点
的坐标;
(2)动点
从点
出发,以每秒1个单位长度的速度沿
的方向运动到
停止,运动时间为
,三角形
的面积为
,求
与
的关系式;
(3)在坐标轴上是否存在点Q,满足三角形
的面积等于
,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/6c240561788bc63f41a6703219fb66d9.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/e7d21f72aca4a8a9a188aec99dd631d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48c09615735d331befd07664aa47cb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ed17a4c5bd9f5cca4b9e308df7b7c70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b48febd1c78eb51e8ec0921aecc5697.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/9/d4864ea1-36ab-442e-97cf-fadb708ee9e4.jpg?resizew=119)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26a355fb2e1dbd34952d684cb91cdbc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1b489c25405ce48699d4f0a62820bed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)在坐标轴上是否存在点Q,满足三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6760f565c694d1cdb6d7068e14526d00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feedf4c98938dedb94fcbcbf3e24a6ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
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【推荐3】在四边形ABCD中,AB∥CD,∠BCD=90°,AB=8cm,BC=6cm,AD=10cm,以CD所在直线为x轴,以经过点A并且与CD垂直的直线为y轴,建立平面直角坐标系(如图).点P,Q分别是线段AB和CD上的动点,点P以1cm/s的速度从点B向点A运动,同时点Q以2cm/s的速度从点D向点C运动,当其中一个点到达终点时,另一个点也随之停止运动.设运动时间为t(s)(0<t<8),请回答下列问题:
![](https://img.xkw.com/dksih/QBM/2022/2/11/2914020194566144/2914574924193792/STEM/c1bc1928-0330-4b9e-b2cb-ff8e9f1cd55f.png?resizew=234)
(1)用含t的代数式表示点P的坐标;
(2)设四边形PBCQ的面积为S cm2,求S与t之间的关系式.
(3)在运动过程中,是否存在某一时刻t,使四边形PBCQ的面积恰为四边形ABCD面积的
?若存在,求出t的值;若不存在,请说明理由;
(4)连接BQ,求t为何值时,直线BQ与y轴的交点坐标为(0,-2)?
![](https://img.xkw.com/dksih/QBM/2022/2/11/2914020194566144/2914574924193792/STEM/c1bc1928-0330-4b9e-b2cb-ff8e9f1cd55f.png?resizew=234)
(1)用含t的代数式表示点P的坐标;
(2)设四边形PBCQ的面积为S cm2,求S与t之间的关系式.
(3)在运动过程中,是否存在某一时刻t,使四边形PBCQ的面积恰为四边形ABCD面积的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
(4)连接BQ,求t为何值时,直线BQ与y轴的交点坐标为(0,-2)?
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解答题-作图题
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名校
【推荐1】△ABC在平面直角坐标系中的位置如图1所示,其中每个小正方形的边长为1个单位长度.
![](https://img.xkw.com/dksih/QBM/2022/4/22/2963712663887872/2965140939972608/STEM/456cbafc-26c7-4775-833d-10ac4ab6458e.png?resizew=426)
(1)画出将△ABC绕原点O顺时针旋转90°得到的图形△A1B1C1;
(2)求(1)中点B的运动路径长;
(3)如图2,已知∠AOB,OA=OB,点E在OB边上,四边形AEBF是矩形,请你用无刻度的直尺在图中画出∠AOB的平分线(不写作图方法,只保留画图痕迹).
![](https://img.xkw.com/dksih/QBM/2022/4/22/2963712663887872/2965140939972608/STEM/456cbafc-26c7-4775-833d-10ac4ab6458e.png?resizew=426)
(1)画出将△ABC绕原点O顺时针旋转90°得到的图形△A1B1C1;
(2)求(1)中点B的运动路径长;
(3)如图2,已知∠AOB,OA=OB,点E在OB边上,四边形AEBF是矩形,请你用无刻度的直尺在图中画出∠AOB的平分线(不写作图方法,只保留画图痕迹).
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【推荐2】解答题
(1)解方程:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8034dddd265a186e29172623e3b9eadf.png)
(2)如图,在边长为1的正方形网格中
的顶点均在格点上.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/1/404ed114-a120-4131-84b3-baf1a7de7123.png?resizew=195)
①画出
绕点O逆时针旋转
的图形
;并直接写出点
的坐标;
②求出①中A点运动轨迹长度.
(1)解方程:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8034dddd265a186e29172623e3b9eadf.png)
(2)如图,在边长为1的正方形网格中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/1/404ed114-a120-4131-84b3-baf1a7de7123.png?resizew=195)
①画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7a0387fc1258f31e44a10068c0ccfd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df2c4f20594ab1443c0d8dcce42895f3.png)
②求出①中A点运动轨迹长度.
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解答题-作图题
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【推荐1】如图,在平面直角坐标系中,已知点
和格点
,请按照下列要求完成作图:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/19/c8bf1a50-c16f-4d84-939d-80510e8bf56d.png?resizew=345)
(1)将
沿着x轴的方向平移得到
,当点A的对应点
落在y轴上时,画出
的图形;
(2)
绕点P顺时针旋转
后,则点
的对应点
的坐标是 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2007972af3341f27fbc32ce62dfce5e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/19/c8bf1a50-c16f-4d84-939d-80510e8bf56d.png?resizew=345)
(1)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
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解答题-作图题
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【推荐2】如图,正方形网格中,每个小正方形的边长为
,点
都是格点.
的面积为_______;
(2)若
沿着
方向平移后得
(其中点
的对应点分别是
),画出
;
(3)图中
与
的关系 是:__________;
(4)画出
边上的中线
(利用网格点和直尺画图)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/048b61a5fb5f420c6d7de88db5bc3aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4496fe22b40bc63581998e6b7ef6783.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f951a536cc785994e26d39407d20c0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38335830b93ac4d99c28a8e209eecb3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c5b88ec996d2d117987e7303cefe4ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
(3)图中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
(4)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6655e2fa64a32cd12fe0279afd65d73.png)
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解答题-作图题
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【推荐1】如图,在建立了平面直角坐标系的正方形网格中,A(2,2),B(1,0),C(3,1)
![](https://img.xkw.com/dksih/QBM/2015/4/29/1573833411837952/1573833418129408/STEM/38f0d7059bd54f2ca6639e15c03cf1df.png?resizew=225)
(1)画出△ABC关于x轴对称的△A1B1C1.
(2)画出将△ABC绕点B逆时针旋转90°,所得的△A2B2C2.
(3)直接写出A2点的坐标.
![](https://img.xkw.com/dksih/QBM/2015/4/29/1573833411837952/1573833418129408/STEM/38f0d7059bd54f2ca6639e15c03cf1df.png?resizew=225)
(1)画出△ABC关于x轴对称的△A1B1C1.
(2)画出将△ABC绕点B逆时针旋转90°,所得的△A2B2C2.
(3)直接写出A2点的坐标.
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解答题-作图题
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【推荐2】小正方形的顶点称为格点,顶点均在格点上的图形叫做格点图形。如图,在
的正方形网格中,画出符合要求的格点三角形.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/2/e5249adf-7016-46df-93b7-8082a661fdf3.png?resizew=326)
(1)在图1中画出以C为旋转中心顺时针旋转
的三角形;
(2)在图2中画出以
为边的三角形,且与
相似(不全等).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f5bd9e03ac5428cfa69891bf646788.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/2/e5249adf-7016-46df-93b7-8082a661fdf3.png?resizew=326)
(1)在图1中画出以C为旋转中心顺时针旋转
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7a0387fc1258f31e44a10068c0ccfd0.png)
(2)在图2中画出以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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