如图,在平面直角坐标系中,直线AB与x轴、y轴交于A、B两点,且OA、OB的长度满足
,M是OA上一点,若将△ABM沿着直线BM折叠,点A恰好落在y轴上的点P处.
(2)求直线BM的解析式;
(3)在坐标平面内是否存在一点N,使以点B、M、A、N为顶点的四边形是平行四边形?若存在,直接写出N点的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcf8d95745a8ca5e92e69e600bf187b8.png)
(2)求直线BM的解析式;
(3)在坐标平面内是否存在一点N,使以点B、M、A、N为顶点的四边形是平行四边形?若存在,直接写出N点的坐标;若不存在,请说明理由.
21-22八年级下·黑龙江鹤岗·期末 查看更多[3]
黑龙江省鹤岗市绥滨县2021-2022学年八年级下学期期末考试数学试题(已下线)专题9.36 平行四边形折叠问题(巩固篇)(专项练习)-2022-2023学年八年级数学下册基础知识专项讲练(苏科版)(已下线)期末各名校真题复习(压轴必刷48题15考点)-2023-2024学年八年级数学下学期期中期末考点归纳满分攻略讲练(人教版)
更新时间:2022-08-09 11:21:03
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解答题-问答题
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适中
(0.65)
【推荐1】在平面直角坐标系
中,点A的坐标为
,点B的坐标为
,连接![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(1)当
轴时,求线段
的长度
(2)若
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f4c78214e43a8b93f2a57072033cbcf.png)
①当点A、O、B三点共线时,求n的值
②当点A、O、B三点不共线时,连接
,
,若
,求m的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7795aec93c2c7ac2fd93e6747ca6516c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5fde939d52e563a3d3e4135d549e3f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfe4688f9cfc0d25ff0527756fe606c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f614a3aa0923fbbc1069de0e1d911a46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6447857636913595ea0e69c1d39bb0eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f4c78214e43a8b93f2a57072033cbcf.png)
①当点A、O、B三点共线时,求n的值
②当点A、O、B三点不共线时,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
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【推荐2】如图,在平面直角坐标系中,已知
,
,
三点,其中
满足关系式:
.
(1)求
的值;
(2)请直接判断
与y轴的位置关系;
(3)若平面内有一点
,且点P到
的距离为5,请求出
的面积;
(4)如果点
在第二象限内,是否存在负整数m,使四边形
的面积不小于
面积的3倍?若存在,请直接写出所有满足条件的点P的坐标,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/296c31eaede57efe89ffb83f02ad4622.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5612d598e27ac2ce0ab89fb63538bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/208c4a5a23aa63572885feb26ec2aa14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7f5573b30734d65648f61c0a94c98de.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/12/428ad975-51d7-498d-9c10-a6d68f3f7b67.png?resizew=229)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7f5573b30734d65648f61c0a94c98de.png)
(2)请直接判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(3)若平面内有一点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c3767a206cdebb1f832e796058b42a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b4dcc093218443f71a046b6df94bbe.png)
(4)如果点
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【推荐1】已知:如图,直线OB解析式为
,点B的纵坐标为
,点A的坐标为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/30/b92b30ff-5238-4e02-8eb7-18d1cc517736.png?resizew=193)
(1)求直线AB的解析式:
(2)动点P从原点O出发,以每秒1个单位的速度在线段OA上向终点A运动,过P作PC⊥x轴,交OB于C,过C作CD⊥y轴,交AB于D,设点P的运动时间为t秒,线段CD的长为d,求出d关于t之间的函数关系式,并直接写出自变量t的取值范围;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45cc81cfaccc00aa4b7139de5a35a102.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ed24bfcc37b79fe9ca61ed8fdf26ea.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/30/b92b30ff-5238-4e02-8eb7-18d1cc517736.png?resizew=193)
(1)求直线AB的解析式:
(2)动点P从原点O出发,以每秒1个单位的速度在线段OA上向终点A运动,过P作PC⊥x轴,交OB于C,过C作CD⊥y轴,交AB于D,设点P的运动时间为t秒,线段CD的长为d,求出d关于t之间的函数关系式,并直接写出自变量t的取值范围;
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解答题-作图题
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适中
(0.65)
【推荐2】已知一次函数
.
(1)当k等于1,
,
时,分别写出相应的一次函数的表达式,并在如下直角坐标系中画出相应的图象(三条直线).
(2)观察(1)的图象,三条直线都经过了同一个点(记为点P).写出点P的坐标;其实,无论k为何实数
时,一次函数
都经过点P.请说明理由.
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(1)当k等于1,
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(2)观察(1)的图象,三条直线都经过了同一个点(记为点P).写出点P的坐标;其实,无论k为何实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3cb77304ba3546c1fc629832f1b811f.png)
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解答题-证明题
|
适中
(0.65)
【推荐1】如图,
的直径
垂直于弦
,垂足为
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/28/979cf5a5-1b82-44f3-bfd0-a5df82dd4a26.png?resizew=117)
(1)求
的长;
(2)连接
和
,请判断
的形状,并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab9925407467278420029b8ab7b9561a.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/28/979cf5a5-1b82-44f3-bfd0-a5df82dd4a26.png?resizew=117)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
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解答题-作图题
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适中
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【推荐2】一个几何体的三种视图如图所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/1/225af4e2-2f52-46a0-b140-8425a8789149.png?resizew=188)
(1)这个几何体的名称是 __,其侧面积为 __;
(2)画出它的一种表面展开图;
(3)求出左视图中
的长.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/1/225af4e2-2f52-46a0-b140-8425a8789149.png?resizew=188)
(1)这个几何体的名称是 __,其侧面积为 __;
(2)画出它的一种表面展开图;
(3)求出左视图中
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【推荐1】如图,
的面积为12,
,
.点M在边AB上(点M与点A不重合),连结DM,作点A关于直线DM的对称点
,连结
、
.
![](https://img.xkw.com/dksih/QBM/2022/5/31/2991227185659904/2992254938161152/STEM/7f74854a-64e7-44a1-81f5-ea9f8eba5bc3.png?resizew=224)
(1)点D到直线AB的距离是______.
(2)设点
到直线BC的距离为d,求d的最小值.
(3)当点
落在
的边上时,求AM的长.
(4)当直线
与
的一边垂直时,直接写出AM的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42198b8e646ccfbbec323fd364c4d90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a21897349d3d7c94419692106887153.png)
![](https://img.xkw.com/dksih/QBM/2022/5/31/2991227185659904/2992254938161152/STEM/7f74854a-64e7-44a1-81f5-ea9f8eba5bc3.png?resizew=224)
(1)点D到直线AB的距离是______.
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
(3)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
(4)当直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42198b8e646ccfbbec323fd364c4d90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
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解答题-证明题
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【推荐2】如图,在平行四边形
中,
分别平分
交
于点E、G.
.
(2)过点E作
于点F,若
,平行四边形
的周长为28,则平行四边形
的面积为 .
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(2)过点E作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab00e0cff0876c4183a47f1272cf9928.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1496042c1d721cffd25053e997a9a97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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