在直角坐标系中,
的三个顶点都在边长为
的小正方形的格点上,
关于
轴的对称图形为
,以
与
组成一个基本图形,不断复制与平移这个基本图形,得到图形所示的图形
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/10/e5dfe770-ddc9-47f1-8df3-2191c0c78263.png?resizew=497)
(1)观察以上图形并填写下列各点坐标:
( , ),
( , ),
,
( , )(
为正整数)
(2)若
是这组图形中的一个三角形,当
时,则
,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c65edad25ddd666cdce0d7e5afefc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c65edad25ddd666cdce0d7e5afefc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24414f4f8d6af6e0aa1425b634473d2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c65edad25ddd666cdce0d7e5afefc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24414f4f8d6af6e0aa1425b634473d2d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/10/e5dfe770-ddc9-47f1-8df3-2191c0c78263.png?resizew=497)
(1)观察以上图形并填写下列各点坐标:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdc2b6b23da3e065820c15cf6c675e20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0d7559d8dfa8236ca9d4b1853fbdec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a75bf04110c3a0245edcf20c2e1aeb78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2fb33698eed250ee5c9d78ef326e5b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
22-23八年级上·江苏·课后作业 查看更多[2]
(已下线)2.2 轴对称的性质(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)(已下线)5.2.2 坐标的位置变换(练习)-2022-2023学年八年级数学上册同步精品课堂(苏科版)
更新时间:2022-08-24 20:04:20
|
【知识点】 坐标与图形变化——轴对称解读
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】如图,在直角坐标平面内,已知点A的坐标为
,点B的坐标为
,点P为直线
上任意一点(不与A、B重合),点Q是点P关于y轴的对称点.
的面积为 .
(2)设点P的横坐标为a,那么点Q的坐标为 .
(3)设点P的横坐标为
,如果
和
的面积相等,且点P在点Q的右侧,那么应将点P向 (填“左”“右”)平移 个单位.
(4)如果
的面积是
的面积的2倍,那么点P的坐标为 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4681073487d89441a8db549f4187dda8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb990ec578336536fada32bd177ac7ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b83beedb3438153e6f728545fe3e03.png)
(2)设点P的横坐标为a,那么点Q的坐标为 .
(3)设点P的横坐标为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3991001f80af2716b605efe2d7641d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1f0417d8269f01d8e0bc1a8756e2ac.png)
(4)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3991001f80af2716b605efe2d7641d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1f0417d8269f01d8e0bc1a8756e2ac.png)
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解答题-问答题
|
适中
(0.65)
名校
【推荐2】在平面直角坐标系中
的顶点坐标分别是
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/9/57b20855-a272-4a3d-8e7f-0fe689b6a26c.png?resizew=268)
(1)在图中作
,使
和
关于
轴对称,并写出
的坐标;
(2)连接
,
,请求出
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6acf45a5f66394502b70bf1dd68ee40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6299c1e360a6932b6b6549fa8606cce8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/561df1065e42bbaada632e02adfcee89.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/9/57b20855-a272-4a3d-8e7f-0fe689b6a26c.png?resizew=268)
(1)在图中作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabe764f05300ac83c7d16b685d27af4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b7d857811cbd619f868d951aa7a0ab8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e827641feb4179bca7033ed8760bf728.png)
您最近一年使用:0次