如图,在平面直角坐标系中,
三个顶点的坐标分别是
.
(1)将
以点C为旋转中心旋转
,画出旋转后对应的
;平移
,若点A的对应点为点C,画出平移后对应的
;
(2)若将
绕某一点旋转可以得到
,请直接写出旋转中心的坐标;
(3)在x轴上有一点P,使得
值最小,请直接写出点P的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce7f6d278f2ef7a193b7eed7be6b3c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90d5b97b474d5651280df58e9dfcdd1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/19/ff63f36d-9d21-4632-a88b-3807dfc452fc.png?resizew=270)
(1)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfe639eab78eafd2d40ea70aa5d3f21d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2f73e4d0557ca664d1edd70b7275667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cba86c5540fc88da1e65806c96807157.png)
(2)若将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2f73e4d0557ca664d1edd70b7275667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cba86c5540fc88da1e65806c96807157.png)
(3)在x轴上有一点P,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a13ec9a812274ad0839f20ba17348687.png)
更新时间:2023-07-14 09:18:53
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】已知直线
与x轴,y轴分别交于点A,点B,另一直线
过点
,且把
分成两部分.
(1)若
被分成的两部分面积相等,求k与b;
(2)若
被分成的两部分面积比为
,求k与b.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a98e24892abc0eb34d5216d4e89c61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1c68ba9b8306c3007076c1da71ec005.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37d65e051e943ab28fa57aee2fb57994.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】已知一次函数
的图象经过点
,且与直线
的交点在x轴上.
(1)求这个一次函数的解析式.
(2)此函数的图象经过哪几个象限?
(3)求此函数的图象与坐标轴围成的三角形的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c59a593a0dd02859364a57fd100c55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bad9a996b1332b694a9d61f78d6b96f5.png)
(1)求这个一次函数的解析式.
(2)此函数的图象经过哪几个象限?
(3)求此函数的图象与坐标轴围成的三角形的面积.
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐1】在正方形网格中,每个小正方形的边长均为
个单位长度,
的三个顶点的位置如图所示.现将
平移,使点
变换为点
,点
分别是
的对应点.
(1)请画出平面直角坐标系及平移后的
,则E、F的坐标分别是__________________;
(2)若连接
、
,则这两条线段之间的关系是__________;
的面积是__________;
(3)请在
上找一点
,使得线段
平分
的面积,在图上作出线段
.
(4)若在x轴上存在一点M,使
的面积为8,则M点坐标为_________________;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](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/192dbe2e72330717901895e54f43c1a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f26af822cea46daea2f47604a5bb3abe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab609a6574633ebabcff3e73fa862081.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/8/c02b8bfd-9628-4bb6-a426-06df9136789d.png?resizew=226)
(1)请画出平面直角坐标系及平移后的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
(2)若连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
(3)请在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
(4)若在x轴上存在一点M,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e2bd387ad688461e522af5acf2108d5.png)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐2】如图,在每个小正方形边长为1的方格纸中,
的顶点都在方格纸格点上.
![](https://img.xkw.com/dksih/QBM/2020/5/18/2465591603044352/2465979771387905/STEM/61c918bab5ac4fdc9a28547fd181fb46.png?resizew=201)
(1)将
经过平移后得到
,图中标出了点A的对应点D,补全
;
(2)在图中画出
的中线BG和高CH;
(3)在(1)条件下,AD与CF的关系是________________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/2020/5/18/2465591603044352/2465979771387905/STEM/61c918bab5ac4fdc9a28547fd181fb46.png?resizew=201)
(1)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
(2)在图中画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(3)在(1)条件下,AD与CF的关系是________________.
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐1】如图,在平面直角坐标系中,先把梯形ABCD向左平移6个单位长度得到梯形A1B1C1D1.
(1)请你在平面直角坐标系中画出梯形A1B1C1D1 ;
(2)以点C1为旋转中心,把(1)中画出的梯形绕点C1顺时针方向旋转
得到梯形A2B2C2D2 ,请你画出梯形A2B2C2D2.
(1)请你在平面直角坐标系中画出梯形A1B1C1D1 ;
(2)以点C1为旋转中心,把(1)中画出的梯形绕点C1顺时针方向旋转
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ff7caec4fdd8fb54a3ffbff9692414.png)
![](https://img.xkw.com/dksih/QBM/2018/7/21/1993495903125504/1995689290997760/STEM/ee1ace81fa6f4160ac97374a34274bfd.png?resizew=265)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
名校
【推荐2】如图所示的正方形网格中,△ABC 的顶点均在格点上,请在所给直角坐标系中按要求画图和解答下列问题:
,画出△
;
(2)作出△ABC关于坐标原点O成中心对称的△
.
(3)作出点C关于x轴的对称点P. 若点P向右平移x个单位长度后落在△
的内部(不含落在△
的边上),请直接写出x的取值范围 .(提醒:每个小正方形边长为1个单位长度)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0645ae6945ac2f5e75bd58f00634be7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0645ae6945ac2f5e75bd58f00634be7.png)
(2)作出△ABC关于坐标原点O成中心对称的△
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/444270a496474c8a752e88ab1487601c.png)
(3)作出点C关于x轴的对称点P. 若点P向右平移x个单位长度后落在△
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/444270a496474c8a752e88ab1487601c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/444270a496474c8a752e88ab1487601c.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐1】已知在
中,
,点
是
内心,连接
,且
,现将
以B为圆心顺时针旋转到
边与
边所在直线重合,点
落在点
处,将
以
为圆心逆时针旋转到
边与
边所在直线重合,点
落在点
处.
和
所在的直线
;
(2)求线段
的长度;
(3)在⊙
中,求以
为圆心角的扇形与以
为圆心角的扇形和以
为圆心角的扇形面积之比是多少?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05608b16594863d4bff412ab7db252de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a3fed45c61948002bcfc173b0a3b48e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bbf9680f74a9ac5d934304654ce2771.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94132e99a6f7294668549b3c3d7a26c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12fe32dfbd66709875c5b9f79c9496da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9567e53bac57081a0981db9b2a7eaae9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16670199a9dfbc597ea6d849a4368d94.png)
(2)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/270ddac9587bf1ea553914cb69595ab2.png)
(3)在⊙
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fed1f57a835af4e9022e27603d12d31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22df2977de56cc69be0c1e847653d7a.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐2】综合与实践
八年级同学在数学老师的指导下,以“三角形的旋转”为主题,开展如下数学探究活动:
(1)如图1,
![](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/bfe639eab78eafd2d40ea70aa5d3f21d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b347da9da842f89d3ecce7e6ed1e6411.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83873a9d782f2588c5eedbfe73f9bc2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
迁移探究:
(2)如图2,(1)中的其他条件不变,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79cd9d0d73549e2944578f3513631ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
拓展应用:
(3)如图3,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c2e679d7b314ff58c284da08e8edbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec6505cefaa7c103dac2a89de8c528df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
您最近一年使用:0次