如图,矩形ABOC的顶点A的坐标为(﹣4,5),D是OB的中点,E是OC上的一点,当△ADE的周长最小时,点E的坐标是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/4/ebfef2a6-97c9-4c10-9373-66b3daf5c4ef.png?resizew=174)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/4/ebfef2a6-97c9-4c10-9373-66b3daf5c4ef.png?resizew=174)
A.(0,![]() | B.(0,![]() | C.(0,2) | D.(0,![]() |
更新时间:2022-03-04 20:22:46
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【推荐1】下列结论正确的是( )
A.点![]() |
B.点![]() ![]() ![]() ![]() ![]() ![]() ![]() |
C.平面直角坐标系中,点![]() ![]() |
D.已知点![]() ![]() ![]() |
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【推荐2】如图,点B的坐标为(4,4),作BA⊥x轴,BC⊥y轴,垂足分别为A、C,点D为线段OA的中点,点P从点A出发,在线段AB、BC上沿A→B→C运动,当OP=CD时,点P的坐标为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/8/b871ddd7-b482-4e50-8683-6b38f82e2d10.png?resizew=148)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/8/b871ddd7-b482-4e50-8683-6b38f82e2d10.png?resizew=148)
A.(4,1) | B.(4, 2) | C.(2,2) | D.(4, 2)或(2,4) |
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【推荐1】将一次函数
的图象进行如下几何变换:①向左平移
个单位长度;②向上平移
个单位长度;③沿直线
翻折;④沿直线
翻折,其中变换后的函数图象经过点
的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a30d81778526362533c21732ced1cde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ef79861421b414b455a090a3ef04fef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be0be09ce9e5037da82d1bef730b2e9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d968eed5310c8b0f4777b9ccfcf1247.png)
A.①②③ | B.①③④ | C.②③④ | D.①②④ |
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【推荐2】已知y=kx+b,且当x=1时,y=-2;当x=-1时,y=-4.则k,b的值是( )
A.k=-1,b=-3 | B.k=1,b=-3 | C.k=-1,b=3 | D.k=1,b=3 |
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【推荐1】如图,在平面直角坐标系中,点
的坐标为
,将
沿
轴向右平移后得到
点
的对应点
在直线
上,则点
与其对应点
之间的距离为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c76c41773aae617db1c0cc04bcf836f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0d02d76af11a2b8bfb7d6e1b3c171f7.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/163b872a40ad8830c3e2726b41bab199.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/5/7e39ecc5-6e72-4788-9930-376d5a738349.png?resizew=150)
A.![]() | B.![]() |
C.![]() | D.![]() |
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【推荐2】如图1所示,在直角梯形
中,
,
.动点
从点
出发,沿梯形的边由
运动.设点
运动的路程为
,
的面积为
.把
看作
的函数,函数的图象如图2所示,则
面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee8ef58be8708144272538ee427fb92c.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fc9477c267b169bafbe5ccd24e7f6c2.png)
![](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/7a855335176fc36a15017f50a8561348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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A.10 | B.16 | C.18 | D.20 |
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