题型:解答题-问答题
难度:0.65
引用次数:31
题号:22761680
综合与实践
如图1,在平面直角坐标系中,
,
,
.将线段
沿x轴向右平移到经过点C时,得到线段
,连接
.
②线段
上的一点
平移之后的对应点
的坐标为 .
(2)如图1,若
的平分线交x轴于点E,则
与
有怎样的数量关系?请说明理由.
(3)如图2,点G,H分别为线段
上的动点,且满足
,请直接写出四边形
的面积.
如图1,在平面直角坐标系中,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9c33700c3358cbbd8db376f9f0613b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/076271898437c71f15453bc809eaccdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a65d8ff9318909d18b6e1c76f90d61f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
②线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90688751e58655291204fab149e744e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee6765a83140d745a6de4c85d9b6b50.png)
(2)如图1,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/246a86f34603eaf2e6a948681b831b0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cfc2771aa0d5b97d2297f8a26a6f6b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9940b7a52cfb34f91389c8adac6b69e.png)
(3)如图2,点G,H分别为线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/989c75a3fd02e4971cab421c88de92f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e22557378e5d3dd181070ca27ff953f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d996b7cb0eeb4baad6bd1bdfeb99281.png)
23-24七年级下·山西运城·期中 查看更多[1]
(已下线)山西省运城市盐湖区2023-2024学年七年级下学期期中数学试题
更新时间:2024-05-10 22:51:52
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解答题-问答题
|
适中
(0.65)
【推荐1】已知
在平面直角坐标系中的位置如图所示,其中边
在
轴上且
,边
在
轴上且
,
平分
交
于点
.
,
两点的坐标:
(________),
(________).
(2)如图1,求点
的坐标.
(3)如图2,线段
(点
在点
上方)在
轴上移动,且
,连接
,
,则
折最小值为________.
(4)在平面内是否存在一点
,使得
,
,
,
四点组成的四边形是平行四边形?若存在,请直接写出点
的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c633830c6e2ac6d8d6e18890ef5ee33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e3dfcd8aff269dd5aba398816490c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ba1df94176a1f769c7a0a12bf357fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22f9341d51c827a29a4a0b0b3dded16c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)如图1,求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(3)如图2,线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33c096bd244d7e30e8ef26fb5278aac9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a424b50eaeafa6f302ffd95476cb86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cfda09c3c16ecb9434a3b1960f08eac.png)
(4)在平面内是否存在一点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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解答题-问答题
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适中
(0.65)
【推荐2】在平面直角坐标系中,已知A(a,0),B(b,0),C(0,4),D(6,0),点P(m,n)为线段CD上一点(不与点C和点D重合).
(1)求m与n之间的数量关系;
(2)如图1,若a=﹣2,点B为线段AD的中点,且三角形ABC的面积等于四边形AOPC面积,求m的值;
(3)如图2,设a,b,m满足
,若三角形ABP的面积等于5,求m的值.
(1)求m与n之间的数量关系;
(2)如图1,若a=﹣2,点B为线段AD的中点,且三角形ABC的面积等于四边形AOPC面积,求m的值;
(3)如图2,设a,b,m满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f844d2b1c5dfdd37f3e8f3ee67ceb65c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/2/dbe29b01-6aa5-4305-b839-2e632e7a3df1.png?resizew=359)
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解答题-作图题
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适中
(0.65)
名校
【推荐1】如图,在平面直角坐标系中,
各顶点的坐标分别为
,
,
.
![](https://img.xkw.com/dksih/QBM/2021/7/23/2770471612989440/2777544514469888/STEM/45c003ea-c8b8-491f-bde2-f741e81b56cf.png?resizew=280)
(1)请画出
关于原点O对称的
,并写出点
的坐标;
(2)若
经过平移变换后得到
,且点
的坐标为
,请画出
,并写出点
的坐标;
(3)若
与
关于点P成中心对称,请你在图中画出点P.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6646e758862a34d89ee14de8a1ea13b2.png)
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(1)请画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
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(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828dc8dc7259c510b6d63abf40f60e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82be1703fea194fbd9a520f879e16b8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828dc8dc7259c510b6d63abf40f60e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828dc8dc7259c510b6d63abf40f60e90.png)
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解答题-问答题
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适中
(0.65)
【推荐2】如下图,在平面直角坐标系中,已知点
,将点A向右平移2个单位长度得到点B,连接
,将线段
再向下平移4个单位长度,得到线段
,点A的对应点为点C.
的面积;
(2)点P为y轴正半轴上一点,点P的纵坐标为t,连接
、
,若
的面积为S,用含t的
式子表示S;
将四边形
的面积分成
两部分时,求出点P的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c9ece4ff94b2b1c4cc7ee25000f996f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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(2)点P为y轴正半轴上一点,点P的纵坐标为t,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/177678001b2ccde1db8f57fa5e017002.png)
式子表示S;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/520f8abda6a85e7ef6f281fc2df853fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5881f1ce9b4172ca346032d0fd1e3d.png)
您最近一年使用:0次