如图①,在矩形OACB中,点A在x轴正半轴上,点B在y轴正半轴上,点C在第一象限,OA=8,OB=6
(2)如图②,点G在BC边上,连接AG,将△ACG沿AG折叠,点C恰好与线段AB上一点
重合,求线段CG的长度;
(3)如图③,P是直线y=2x-6上一点,PD⊥PB交线段AC于D.若P在第一象限,且PB=PD,试求符合条件的所有点P的坐标.
(2)如图②,点G在BC边上,连接AG,将△ACG沿AG折叠,点C恰好与线段AB上一点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
(3)如图③,P是直线y=2x-6上一点,PD⊥PB交线段AC于D.若P在第一象限,且PB=PD,试求符合条件的所有点P的坐标.
21-22八年级上·江西吉安·期末 查看更多[2]
江西省吉安市青原区2021-2022学年八年级上学期期末数学试题(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:2022-04-18 15:55:46
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】综合与探究:
如图1,一次函数
的图象与x轴和y轴分别交于A,B两点,再将△AOB沿直线CD对折,使点A与点B重合.直线CD 与x轴交于点C,与AB交于点D
(1)求点A和点B的坐标
(2)求线段OC的长度
(3)如图 2,直线 l:y=mx+n,经过点 A,且平行于直线 CD,已知直线 CD 的函数关系式为
,求 m,n 的值
如图1,一次函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6b098e17fa76c648424e9cadf558cc8.png)
(1)求点A和点B的坐标
(2)求线段OC的长度
(3)如图 2,直线 l:y=mx+n,经过点 A,且平行于直线 CD,已知直线 CD 的函数关系式为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad9c6b9e4e43f6e14e82e0be0edb8b.png)
![](https://img.xkw.com/dksih/QBM/2020/3/15/2419924322017280/2420325260468224/STEM/9b601657-7632-4dbd-841a-4c4182170b8a.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,在正方形网格中,每个方格的边长表示1个单位长度,点
的坐标为
,点
的坐标为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/12/d8d9705d-8dbc-4cc1-b574-a936fa24c44f.png?resizew=291)
(1)在图中建立平面直角坐标系,并指出
和
关于________对称;
(2)作出
关于
轴对称的
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da466ecb62e0726c60da70d76bed4b10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ddd46c180401ad4e86b9ef4d5883721.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/12/d8d9705d-8dbc-4cc1-b574-a936fa24c44f.png?resizew=291)
(1)在图中建立平面直角坐标系,并指出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(2)作出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828dc8dc7259c510b6d63abf40f60e90.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】如图,直线
与
轴交于点
,直线
分别与
轴交于点
,与
轴交于点
.两条直线相交于点
,连接
.
_____________,
____________;
(2)求
的面积;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0914e5481986022039aeedc2b5cd12e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6251a33e2fe0754231fec293f75740b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f6ca2c8b6e9e21a3e49f09eb86f15ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5881b1640911274127b9aa3d647ee903.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】如图,已知直线AB与x轴、y轴分别交于A和B,OA=4,且OA、OB长是关于x的方程x2﹣mx+12=0的两实根,以OB为直径的⊙M与AB交于C,连接CM并延长交x轴于N.
(1)求⊙M的半径.
(2)求线段AC的长.
(3)若D为OA的中点,求证:CD是⊙M的切线.
(1)求⊙M的半径.
(2)求线段AC的长.
(3)若D为OA的中点,求证:CD是⊙M的切线.
![](https://img.xkw.com/dksih/QBM/2014/9/2/1573748127580160/1573748133478400/STEM/5eefc1068dc9421eb8819c383bb9e148.png?resizew=234)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】【问题探究】(1)如图1,在正方形
中,对角线
相交于点O.在线段
上任取一点P(端点除外),连接
.
①直接写出:
______
.(填数量关系)
②将线段
绕点P逆时针旋转,使点D落在
的延长线上的点Q处.当点P在线段
上的位置发生变化时,
的大小是否发生变化?请说明理由;
③探究
与
的数量关系,并说明理由.
【迁移探究】(2)如图2,将正方形
换成菱形
,且
,其他条件不变,试探究
与
的数量关系,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d578394cd8e4d7a705599269c512960.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2bd620f91377293c0c5ad062fb738c4.png)
①直接写出:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
②将线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd17a66a2af938c89e46f22e4d893b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f5074f6582074107a07dd6b689e86c.png)
③探究
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
【迁移探究】(2)如图2,将正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/7/81c87b04-984a-4322-9945-4b155ad9ba02.png?resizew=401)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】如图甲所示,已知AE⊥AB,AF⊥AC,AE=AB,AF=AC. BF与CE相交于点M
(1)求证:①△ACE≌△AFB;②EC⊥BF.
(2)如图乙连接EF,画出△ABC边BC上的高线AD,延长DA交EF于点N,其他条件不变,下列四个结论:①∠EAN=∠ABC;
②△AEN≌△BAD;③
;④EN=FN.
正确的结论是 (把正确结论的序号全部填上)
![](https://img.xkw.com/dksih/QBM/2018/11/17/2077575879475200/2084465274421249/STEM/4eb77f65f0de4655913ce9cb664f364e.png?resizew=130)
(1)求证:①△ACE≌△AFB;②EC⊥BF.
(2)如图乙连接EF,画出△ABC边BC上的高线AD,延长DA交EF于点N,其他条件不变,下列四个结论:①∠EAN=∠ABC;
②△AEN≌△BAD;③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a464d28ccce9d0f842efda933a41b63.png)
正确的结论是 (把正确结论的序号全部填上)
![](https://img.xkw.com/dksih/QBM/2018/11/17/2077575879475200/2084465274421249/STEM/4eb77f65f0de4655913ce9cb664f364e.png?resizew=130)
![](https://img.xkw.com/dksih/QBM/2018/11/17/2077575879475200/2084465274421249/STEM/9c69c85db5a847409c4c205a3a28eca9.png?resizew=130)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐1】操作与实践
在矩形
中,
,
,现将纸片折叠,点A的对应点记为点P,折痕为
(点E、F是折痕与矩形的边的交点),再将纸片还原.
【初步思考】
(1)如图1,若点P落在矩形
的
边上,当点E与点B重合时,
;
【深入探究】
(2)如图2,当点E在
上,点F在
上时.
①求证:四边形
为菱形;
②当
时,求菱形
的边长;
【拓展延伸】
(3)如图3,若点F与点D重合,点E在
上,射线
与射线
交于点M.在折叠过程中,是否存在使得线段
与线段
的长度相等的情况?若存在,请求出线段
的长度;若不存在,请说明理由.
在矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc11331a7b2d2619b40ee6d34c3bd620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
【初步思考】
(1)如图1,若点P落在矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e962382788c6e211bdf42a7a0fe45ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83873a9d782f2588c5eedbfe73f9bc2f.png)
【深入探究】
(2)如图2,当点E在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
①求证:四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29560c08663a8e61d56c8ba3ef5633d5.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d11a322c7615c09c06ffee931cd86bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29560c08663a8e61d56c8ba3ef5633d5.png)
【拓展延伸】
(3)如图3,若点F与点D重合,点E在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c2293f93791a597bf0162411f3395f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
名校
【推荐2】已知长方形
中,
,点
在边
上,由
往
运动,速度为
,运动时间为
秒,将
沿着
翻折至
,点
对应点为
,
所在直线与边
交于点
,
(1)如图
,当
时,求证:
;
(2)如图
,当
为何值时,点
恰好落在边
上;
(3)如图
,当
时,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9d3693835853364f2e258eb12ade490.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3683bae59bc5de0cccc8011815c327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b1491d92a046a9c798692f8ff4f061c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/731c6773c75a624196890a67dbb908a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b3bd5e6bc2a0a277d279bb01af9584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9b123ae31090740589ba27a846620b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(1)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aeb9a94e392f6759b18abed89aacc5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb96e0331eebe80ed1ff610faf531fe.png)
(2)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b3bd5e6bc2a0a277d279bb01af9584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(3)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66884efff7400f92b530d69d029778d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://img.xkw.com/dksih/QBM/2019/4/22/2187916691152896/2188049337638912/STEM/e2f843a2d0434dbea219297a376366c3.png?resizew=459)
您最近一年使用:0次