在平面直角坐标系中,
,
,
,
.
(2)若点C在直线
上,求出点C的坐标;
(3)过点C作
的平行线交x轴于点D,交y轴于点E,若
,请直接写出m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64ab699685ceb40954d6b3165047b314.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78d34bd2e10b34e4149f6459b5ac5196.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82d62fee781f70202f2495fbe1aaed3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1996ace2f852e919d8b9b6a3bbe011b5.png)
(2)若点C在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(3)过点C作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/673a7242e9a17d12438d7eb1b97bd54f.png)
22-23七年级下·湖北武汉·期中 查看更多[2]
湖北省武汉市武珞路中学2022-2023学年七年级下学期期中数学试卷(已下线)专题10七年级期中压轴题精选-【好题汇编】备战2023-2024学年七年级数学下学期期中真题分类汇编(人教版,湖北专用)
更新时间:2023-04-30 18:26:45
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解答题-问答题
|
适中
(0.65)
【推荐1】如图,在平面直角坐标系中.已知
,
,其中
,
满足
.
______,
______;
(2)如果在第三象限内有一点
,请用含
的式子表示三角形
的面积;
(3)在(2)条件下,当
时,在
轴上有一点
,使得三角形
的面积与三角形
的面积相等,请求出点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c240561788bc63f41a6703219fb66d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5612d598e27ac2ce0ab89fb63538bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/616e3a963615f2deafc23777a0c3bc5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
(2)如果在第三象限内有一点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e16d691397d33e3c814d43e167384d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3653ada76ba0c8afe9d57c8e7832c6ed.png)
(3)在(2)条件下,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/975ef29bfe20f84c041b8c6ff08bc9f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4d781525777c7b5284dffc70b2a28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3653ada76ba0c8afe9d57c8e7832c6ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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解答题-问答题
|
适中
(0.65)
【推荐2】如图,在平面直角坐标系中,点
,点A、B分别在x轴、y轴的正半轴上,且满足
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/dac7b4e3-a3f5-4da9-8c8f-5fa0cab78c70.png?resizew=161)
(1)求点A、B的坐标;
(2)若点P在y轴上,从点B出发,沿射线
运动,连接
(不包括
),是否存在点P,使得以点
为顶点的三角形与
相似?若存在,请求出点P的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efabe35b2ddc70ecac6fc5522a14c848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a237b2000c5deb8c5687502a28a49e4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/dac7b4e3-a3f5-4da9-8c8f-5fa0cab78c70.png?resizew=161)
(1)求点A、B的坐标;
(2)若点P在y轴上,从点B出发,沿射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf1438142deeac876fc7dc50552e552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2b4d5c2611b634d2e3f92a980569ba8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
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解答题-作图题
|
适中
(0.65)
名校
【推荐1】如图,在平面直角坐标系中,三角形
的三个顶点的坐标分别为
,
,
.将三角形
向右平移5个单位长度,再向下平移4个单位长度,得到三角形
,其中点
,
,
分别为点
,
,
的对应点.
,点
的坐标为_______;
(2)若
边上一点
经过上述平移后的对应点为
,则点
的坐标为_______;(用含
、
的式子表示)
(3)三角形
的面积是_______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e80de90f4128e1b1501f155442b9aa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4495635b907ff741d51dcba5d71bba5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ee143cfbef1de08cfb5f9055c2dff4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a1264a2e3609e1c274acb89b5ea5019.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a1264a2e3609e1c274acb89b5ea5019.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44ee82573986d4fa6a7ee1b5f397edae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee6765a83140d745a6de4c85d9b6b50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee6765a83140d745a6de4c85d9b6b50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(3)三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.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,在直角坐标系中,有
,
,
三点,其中a,b满足关系式
.
;
(2)把
向上平移2个单位,再向左平移1个单位得到
,写出
、
、
的坐标,并画出平移后的
;
(3)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c6991563453cd366d99513c393d1ccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32db4a2b9284615b242cdb3edb35656b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44b69f35d518fca93a3a627b738d993d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5af54dd137861fa206f1195174d99d51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)把
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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解答题-作图题
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适中
(0.65)
【推荐1】在平面直角坐标系
中,点A,B的坐标分别为
将线段
平移,点A,B的对应点分别为点C,D,且点C坐标为
连接
.
![](https://img.xkw.com/dksih/QBM/2022/7/13/3021426109186048/3034407913512960/STEM/41ce9410504646538710e49d3a838a61.png?resizew=261)
(1)直接画出四边形
;
(2)四边形
的面积为________面积单位;
(3)点E是x轴上一动点,当
时,请直接写出点E的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3cb55dfe91d83b902d1f6d9b0cc19cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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![](https://img.xkw.com/dksih/QBM/2022/7/13/3021426109186048/3034407913512960/STEM/41ce9410504646538710e49d3a838a61.png?resizew=261)
(1)直接画出四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/520f8abda6a85e7ef6f281fc2df853fa.png)
(2)四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/520f8abda6a85e7ef6f281fc2df853fa.png)
(3)点E是x轴上一动点,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d0011368fa9dc87687b966d082ba631.png)
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解答题-作图题
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适中
(0.65)
名校
【推荐2】如图,网格中每个小正方形的边长均为1个单位长度,已知A(﹣2,1),B(﹣2,﹣1),C(0,1).
(1)请在图中所示的平面直角坐标系中作出△ABC;
(2)把△ABC平移到△A1B1C1,使点A的对应点为A1的坐标为(0.﹣2),请你作出△A1B1C1,(点B1,C1分别是B,C的对应点)写出点B1,C1的坐标.
(3)在如图所示的网格中,若△PBC与△ABC的面积相等,则满足条件的不与A重合的格点P(横纵坐标均为整数)共有 个.
(4)y轴上是否存在点M,使S△MBC=3,若存在,求出点M的坐标,不存在请说明理由.
(1)请在图中所示的平面直角坐标系中作出△ABC;
(2)把△ABC平移到△A1B1C1,使点A的对应点为A1的坐标为(0.﹣2),请你作出△A1B1C1,(点B1,C1分别是B,C的对应点)写出点B1,C1的坐标.
(3)在如图所示的网格中,若△PBC与△ABC的面积相等,则满足条件的不与A重合的格点P(横纵坐标均为整数)共有 个.
(4)y轴上是否存在点M,使S△MBC=3,若存在,求出点M的坐标,不存在请说明理由.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/15/d1600502-d946-44a6-9dea-9707d7c62da3.png?resizew=179)
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