在平面直角坐标系中,
的三个顶点的位置如图所示(顶点在格点上).现将
沿某直线翻折,使点A变换为点
,已知A点坐标为
,
的坐标为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/15/b331096f-fabd-4bee-80a1-b684f9b4e695.png?resizew=204)
(1)画出其对称轴m,并画出翻折后的
,直接写出点
,
的坐标.
,
.
(2)若
内部一点P的坐标
,则点P的对称点
的坐标是 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25dc0e7c221cb7577bb2ba9b0a5644ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a8b77523fdb650961e4cc870e12180d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/15/b331096f-fabd-4bee-80a1-b684f9b4e695.png?resizew=204)
(1)画出其对称轴m,并画出翻折后的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ee6e1d480ece7117e1f87ebf4bbeea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63313f7ac7402fcb5a9a840db64c6f08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee6765a83140d745a6de4c85d9b6b50.png)
更新时间:2024-01-16 15:26:25
|
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解答题-作图题
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适中
(0.65)
名校
【推荐1】如图所示,在平面直角坐标系中,已知A(2,2),B(1,0),C(3,﹣2).
(1)请在平面直角坐标系中画出△ABC.
(2)请作△ABC关于y轴对称的△A′B′C′.
(3)已知点P为x轴上一点,若S△ABP=5时,则点P的坐标为 .
(1)请在平面直角坐标系中画出△ABC.
(2)请作△ABC关于y轴对称的△A′B′C′.
(3)已知点P为x轴上一点,若S△ABP=5时,则点P的坐标为 .
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/13/a580da73-232a-4370-a0bc-a2845e553e24.png?resizew=243)
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解答题-作图题
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适中
(0.65)
【推荐2】如图,在平面直角坐标系中,线段AB的两个端点坐标分别为A(2,3),B(2,﹣1).
(1)作出线段AB关于y轴对称的线段CD.
(2)怎样表示线段CD上任意一点P的坐标?
(1)作出线段AB关于y轴对称的线段CD.
(2)怎样表示线段CD上任意一点P的坐标?
![](https://img.xkw.com/dksih/QBM/2018/8/31/2022485586755584/2023185132150784/STEM/bb42818cc2a847b2a63785f4a45f808b.png?resizew=103)
您最近一年使用:0次
解答题-作图题
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适中
(0.65)
【推荐1】已知:图中点A,点B的坐标分别为(﹣2,1)和(2,3).
![](https://img.xkw.com/dksih/QBM/2016/1/18/1573956137435136/1573956143038464/STEM/ad1b6fd4d4b44f3795c28be59fc6098f.png)
(1)在图(1)中分别画出线段AB关于x轴和y轴的对称线段A1B1及A2B2;
(2)在图(2)中分别画出线段AB关于直线x=﹣1和直线y=4的对称线段A3B3及A4B4;
(3)写出点A3、B3与点A4、B4的坐标.
![](https://img.xkw.com/dksih/QBM/2016/1/18/1573956137435136/1573956143038464/STEM/ad1b6fd4d4b44f3795c28be59fc6098f.png)
(1)在图(1)中分别画出线段AB关于x轴和y轴的对称线段A1B1及A2B2;
(2)在图(2)中分别画出线段AB关于直线x=﹣1和直线y=4的对称线段A3B3及A4B4;
(3)写出点A3、B3与点A4、B4的坐标.
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解答题-问答题
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适中
(0.65)
【推荐2】如图,
的顶点坐标分别为
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/13a1abf8-59d6-4af9-958f-4893ee089ffd.png?resizew=325)
(1)作
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(2)以点O为位似中心画
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d3b7a83479da186b01ee342aa92aa56.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/13a1abf8-59d6-4af9-958f-4893ee089ffd.png?resizew=325)
(1)作
![](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/6f01b1bc756438d9cadaf49556f95717.png)
(2)以点O为位似中心画
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab536e9a63e862104b251af9c4dcbcb.png)
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