如图,在平面直角坐标系
中,正方形
的顶点
,
,规定把正方形
“先沿y轴翻折,再向下平移1个单位”为一次变换,这样连续经过2023次变换后,正方形
的中心的坐标为( )
![](https://img.xkw.com/dksih/QBM/2023/4/12/3214824279269376/3215166172676096/STEM/64359427e93b4efe810423713db7701d.png?resizew=144)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56aa389e48cf5f7e1e8906fc4f533196.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/2023/4/12/3214824279269376/3215166172676096/STEM/64359427e93b4efe810423713db7701d.png?resizew=144)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2023-04-12 22:55:14
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【推荐1】在平面直角坐标系中有点A(0,0),点A第1次运动到点A1(0,1),第2次运动到点A2(1,0),第3次运动到点A3(1,1),第4次运动到点A4(0,0),第5次运动到点A5(
,1),第6次运动到点A6(
,0),第7次运动到点A7(0,1),第8次运动到点A8(0,2),第9次运动到点A9(1,1)…,依次规律运动下去,点A第2019次运动到点A2019的坐标是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
A.(1,288) | B.(0,288) | C.(1,289) | D.(0,289) |
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【推荐2】如图,在平面直角坐标系中xOy中,已知点A的坐标是(0,1),以OA为边在右侧作等边三角形OAA1,过点A1作x轴的垂线,垂足为点O1,以O1A1为边在右侧作等边三角形O1A1A2,再过点A2作x轴的垂线,垂足为点O2,以O2A2为边在右侧作等边三角形O2A2A3,…,按此规律继续作下去,得到等边三角形O2018A2018A2019,则点A2019的纵坐标为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/4/abc9d79b-3999-48fd-a9b4-3603b05c9f65.png?resizew=166)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/4/abc9d79b-3999-48fd-a9b4-3603b05c9f65.png?resizew=166)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】如图,在正方形
中,E,F,G分别是
,
,
上的点,且
,连接
分别交
,EF于点M,N,连接
.下列结论:①
;②
;③M是
的中点;④若
,则
.其中正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eebfb8f83877b89e1b791fa5d59aba85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e55e398e8520d8a36fb5a625a085b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52effc81b3b8dbbf0e7a4fd558ef8750.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c31c9f6ee41257798d7740a2043e108.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/408175c29c47f0ebc6ae85a8a025b09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d3988693df7f7974fc6ab2065070dd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/9/7338fb3a-39c6-4fc6-ac33-44bca2efaebe.png?resizew=133)
A.1个 | B.2个 | C.3个 | D.4个 |
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【推荐2】如图,在△ABC中,∠CAB=90°,以△ABC的各边作三个正方形,过点H作HJ⊥ED交ED于点J,连接HE,延长HE交FC于点K,若K为FC中点,且S△ABC﹣S△EHJ=16,则AB的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/8/0ed25174-48a0-44a4-9c48-80eb28c812c7.png?resizew=317)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/8/0ed25174-48a0-44a4-9c48-80eb28c812c7.png?resizew=317)
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【推荐1】若把点A(-5m,2m-1)向上平移3个单位后得到的点在x轴上,则点A在( )
A.x轴上 | B.第三象限 | C.y轴上 | D.第四象限 |
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【推荐2】如图,在平面直角坐标系中,点
、
的坐标分别是
.
,点
在直线
上,将
沿射线
方向平移后得到
.若点
的横坐标为
,则点
的坐标为( )
![](https://img.xkw.com/dksih/QBM/2019/8/26/2277098507698176/2277132876480512/STEM/216e6b36425f4677be778afb45a76a47.png?resizew=152)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ed24bfcc37b79fe9ca61ed8fdf26ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb0e705301752424a492f6277ed7774e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12fe32dfbd66709875c5b9f79c9496da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fbdd6e6594e8a980876bec489e6da4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd2981bf2261343f905ec1b5355a3c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/270ddac9587bf1ea553914cb69595ab2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eaf7debfe544cc82525aec09f78c237.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12fe32dfbd66709875c5b9f79c9496da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://img.xkw.com/dksih/QBM/2019/8/26/2277098507698176/2277132876480512/STEM/216e6b36425f4677be778afb45a76a47.png?resizew=152)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】在平面直角坐标系中,直线
(
是不等于0的常数)与x轴交于点A,与y轴交于点
,若直线
与
关于y轴对称,
与x轴的交点为点
,则
的面积是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/449a2f5f5983869336b5cf2808799361.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d53d6e372ca7e47ba10c19abaed0f3a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394fc6a725f1f56faeff7f4ee118b082.png)
A.18 | B.27 | C.54 | D.81 |
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【推荐2】已知
中,
与
关于
轴对称,
与
关于
轴对称,
与
关于
轴对称,
与
关于
轴对称……,如果
在第二象限,那么
在( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acaa708633e32d0acf4b260ca7afbfe0.png)
![](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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04b56e44e4f0424a2b7a45567120a2e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04b56e44e4f0424a2b7a45567120a2e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e47cd514b2920609e3781c87df6ab70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e47cd514b2920609e3781c87df6ab70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5002f030017f6f0b34a61b2e15c5a9cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/995467eca822ccbdea9dd7f614f115c1.png)
A.第一象限 | B.第二象限 | C.第三象限 | D.第四象限 |
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