如图1,点P从正方形的顶点A出发,沿直线运动到该正方形内部一点,再从该点沿另一条直线运动到顶点D,设点P的运动路程为x,
,图2是点P运动时y随x的变化的关系图象,则正方形的边长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62cc3d38c66519111b2647cb3dcf1438.png)
A.4 | B.![]() | C.2 | D.1 |
更新时间:2024-05-10 09:27:40
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【推荐1】如图所示,
中,
,
,
,B是斜边
上一动点过B作
于B,交边
(或边
)于点A,设
,
的面积为y,则y与x之间的函数图象大致为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/19/72567782-1530-405a-a024-f293c77d9637.png?resizew=282)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc16e867e139c5c519cfef1ccfcec5c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c34eff4d793873d9e812d75d90fd10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004104bafb5f30338123d4ea2b7fedde.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】如图,在长方形ABCD中,点E为AB上一点,且CD=5,AD=2,AE=3,动点P从点E出发,沿路径E-B-C-D运动,则△DPE 的面积y与点P运动的路径长x之间的关系用图象表示大致为( )
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】菱形
在平面直角坐标系中的位置如图所示,点
的坐标为
,
,则点
的坐标为( )
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab8a0cc6504aa4c3a38006f5394b4c2.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】如图,把
绕点C逆时针旋转
得到
,若
,
,
,
,则
的长为( )
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A.2 | B.3 | C.4 | D.5 |
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【推荐1】如图,四边形
是正方形,O,D两点的坐标分别是
,
,点C在第一象限,则点C的坐标是( )
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A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】在平面直角坐标系中,正方形
的顶点
的坐标是
,顶点
的坐标是
,则顶点
的坐标是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
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