如图,在平面直角坐标系中,已知
的三个顶点的坐标分别为
,
,
.
(1)
的面积是______.
(2)画出
绕着点
按顺时针方向旋转90°得到的
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31f65d40db2465cd52367544c340f464.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc0dbaf9a3d2613e9669ec601bc5823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2706809267dc62b456bd09abbd9225d.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828dc8dc7259c510b6d63abf40f60e90.png)
![](https://img.xkw.com/dksih/QBM/2021/1/20/2640341603311616/2642143290441728/STEM/ba90555f-567d-450e-ad61-025ae030f40f.png)
更新时间:2021-01-23 08:37:11
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相似题推荐
解答题-作图题
|
适中
(0.65)
【推荐1】定义:将函数l的图象绕点P(m,0)旋转180°,得到新的函数l'的图象,我们称函数l'是函数关于点P的旋转函数.
例如:当m=0时,函数
关于点(0,0)旋转函数为
.
(1)在图1的平面直角坐标系中,画出一次函数
关于P(0,0)的旋转函数图象;
(2)图2中图象是函数y=(x+1)2+3关于点P(m,0)的旋转函数的图象,请求出图2中所示图象的函数解析式,并求出m的值;
(3)借助以往研究函数的经验,以及网格的特征,在图3的网格中画出反比例函数
关于点(-1,0)的旋转函数图象,并结合所画图象,直接写出该图象的两条相关性质.
例如:当m=0时,函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa64bb903f4a53b03528c8be8cce399a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07c318cbe2e9606858f138b97b695221.png)
(1)在图1的平面直角坐标系中,画出一次函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c608def11fa0e2b34f05592ef1d11fd8.png)
(2)图2中图象是函数y=(x+1)2+3关于点P(m,0)的旋转函数的图象,请求出图2中所示图象的函数解析式,并求出m的值;
(3)借助以往研究函数的经验,以及网格的特征,在图3的网格中画出反比例函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/646e11d5bff57e56ce82c2339f2d71ce.png)
![](https://img.xkw.com/dksih/QBM/2022/5/18/2982158818328576/2983632507543552/STEM/132acf39-15dd-46e1-8ce8-ade91d0ccffd.png?resizew=540)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐2】如图,已知
,
,
是直角坐标系平面上三点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/21/a47fc69a-cb3c-4965-9afc-019851b9904f.png?resizew=256)
(1)画出
绕点C顺时针旋转
后的![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(2)求出A点旋转到
点所经过的路径长和线段
所扫过的图形面积(结果保留根号和
).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c737ce37d2a8fc149ce0aaa0d97639e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ce7be37ff9418a9c95d5dc54814ebd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dc03fafb03395ed84030f03c5d93aa3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/21/a47fc69a-cb3c-4965-9afc-019851b9904f.png?resizew=256)
(1)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(2)求出A点旋转到
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
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