已知A(1,4),B(2,0),C(5,2).
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/6/374c3e55-1bec-4dd6-92f2-ea1081cc8c49.png?resizew=200)
(1)在如图所示的平面直角坐标系中描出点A,B,C,并画出
;
(2)画出
关于y轴对称的
;
(3)点P在x轴上,并且使得
的值最小,请标出点P位置并写出最小值.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/6/374c3e55-1bec-4dd6-92f2-ea1081cc8c49.png?resizew=200)
(1)在如图所示的平面直角坐标系中描出点A,B,C,并画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ee6e1d480ece7117e1f87ebf4bbeea.png)
(3)点P在x轴上,并且使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9178be39a580c4f63d0c55a8bc8020a4.png)
22-23八年级上·四川成都·期末 查看更多[4]
四川省成都市金牛区成都七中八一学校2022-2023学年八年级上学期期末数学试题山东省济南市章丘区2022-2023学年八年级上学期期末数学试题(已下线)重难点05轴对称之“将军饮马”模型-【暑假自学课】2023年新八年级数学暑假精品课(苏科版)广东省深圳市龙岗区百合外国语学校2023-2024学年八年级上学期期末数学试题
更新时间:2023-02-04 19:18:04
|
相似题推荐
解答题-作图题
|
适中
(0.65)
【推荐1】如图,在平面直角坐标系中,点
,点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/6/a7e86e72-d9dc-44e3-9739-b8d888d28ec4.png?resizew=200)
(1)①画出线段
关于y轴对称的线段
,并写出B的对应点D的坐标;
②在y轴上找一点P使
的值最小,请在图中标出P点的位置(保留作图痕迹),并求出
的最小值;
(2)按下列步骤,用不带刻度的直尺在线段
找一点Q使
.
①在图中取点E,使得
,且
,则点E的坐标为______;
②连接
交
于点Q,则点Q即为所求.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a18a7caa080988802ba1145b4fe4203.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c18bf37fd17717a128b123595b845694.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/6/a7e86e72-d9dc-44e3-9739-b8d888d28ec4.png?resizew=200)
(1)①画出线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
②在y轴上找一点P使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a13ec9a812274ad0839f20ba17348687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a13ec9a812274ad0839f20ba17348687.png)
(2)按下列步骤,用不带刻度的直尺在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bd144b98874048426ae5f6fbf836ffb.png)
①在图中取点E,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a26c2c53046cbfe83f84f5393373589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f26f8a79eab3a1a92dd7c7b835ed584.png)
②连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】在平面直角坐标系中,已知点
,分别根据下列条件,求出点
的坐标.
(1)点
的横坐标与纵坐标相等.
(2)点
在过点
且与
轴平行的直线上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f0ec9895b1b551400e2bd7ad164e1de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(1)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65d9dd2f4bec4723a00750f1ba3221dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐1】在网格中建立如图所示的平面直角坐标系,其中
、
、
、
.
(1)请作出四边形
关于
轴对称的四边形
,并写出点
的对应点
的坐标;
(2)在直线
上找一点
,使得
的周长最小,在图中标出
的位置,并写出点
的坐标(保留画图过程的痕迹).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ceec39aaaccbeaac9a4a5bdbb0f0e9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f3cd3027a533dd07220f161c958602.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c13d9b5f9a26ef2475c4356df282fb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23472ed238f36798fd92bdba55b81b3a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/8/02f9f916-937c-4997-ba32-3f300ba6f49b.png?resizew=281)
(1)请作出四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1cbf03524f866cc66d019a01e7c4284.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
解答题-计算题
|
适中
(0.65)
【推荐2】一次函数
的图象与x、y轴分别交于点
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/3/3efeace8-b13a-4047-b993-c17bfc909492.png?resizew=124)
(1)求该函数的解析式,并说明点
是否在函数图象上;
(2)O为坐标原点,设OB、AB的中点分别为C、D.P为OA上一动点,求
的最小值.并求取得最小值时P点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12c67711522ae37bcc97f9d8a023debe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0d1e4a02f6a99a4b838dcaf9541d7f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/076271898437c71f15453bc809eaccdc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/3/3efeace8-b13a-4047-b993-c17bfc909492.png?resizew=124)
(1)求该函数的解析式,并说明点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/781b089662bf214668aae489bda55497.png)
(2)O为坐标原点,设OB、AB的中点分别为C、D.P为OA上一动点,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/186dee1a1cf68677d143172a2a50709c.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐1】问题情境:
在数学课上,张老师带领学生以“图形的平移”为主题进行教学活动.在菱形纸片
中,
,对角线
,将菱形沿对角线
剪开,得到
和
.将
沿射线
方向平移一定的距离,得到
.
观察发现:
(1)如图①,菱形
中,
;
如图②,连接
,四边形
的形状是 ;
(2)将
沿直线
翻折,得
,如图③,然后沿射线
方向进行平移,连接
,若添加一个条件,能否使得四边形
是一个特殊的四边形?若能,请写出添加的条件和这个特殊的四边形,并写出证明过程,若不能,说明理由.
(3)在(2)的条件下,设
和
相交于点
,当
是
的三等分点时,直接写出
的面积.
在数学课上,张老师带领学生以“图形的平移”为主题进行教学活动.在菱形纸片
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d71e6ea7333dbc78d0a7b9bc3892f940.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73636989e83905f8800a865c2b608c43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73636989e83905f8800a865c2b608c43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e5e61804ce550636a0354e0a78a22d.png)
观察发现:
(1)如图①,菱形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/629f896496e9a6fd7df6e0a56e0a6243.png)
如图②,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c30c0d64b256b3efc386ff6276f1ba9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f46b357e543eb2e895d0ea4742f4546.png)
(2)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e5e61804ce550636a0354e0a78a22d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da547af5752515964c58948ec3a5f89a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe08221bb58fef1459a6b6412497d187.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f920913237cb68d097c13578691112f.png)
(3)在(2)的条件下,设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f574463a3c3541e3e42cf7e1fee8e13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/369c774635fb4384dcbabe732c7c5b27.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,
是
的外接圆,
的半径为
,
,
,直径
与
交于点
,过点
作
交
于点
.
![](https://img.xkw.com/dksih/QBM/2024/3/12/3451968133758976/3452622387765248/STEM/ced0f50f01f64a738086782e3c0043f5.png?resizew=116)
(1)求证:
;
(2)求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/533a7b702ada1dd80123e4041271d521.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2573d44bd027ab2e2fc2472c7852af8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.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/187ed13a7bd532bd39af5e5ad7493a2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/2024/3/12/3451968133758976/3452622387765248/STEM/ced0f50f01f64a738086782e3c0043f5.png?resizew=116)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdb2e84a2c5848af3ae4b815a2e1aa4.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐1】如图,
的三个顶点坐标分别为
,
,
.
与
关于x轴成轴对称,请在网格中画出
,并写出
的顶点坐标:
______,
______,
______.
(2)
的面积为______.(直接写出结果)
(3)若P为y轴上一点,当
的值最小时,此时点P的坐标是______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d521c9bf37ce287bc559b016d79e1101.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf728f0bdf787999bed7e8f2afb24493.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5246facb75deb6dd5d6c99e34b0cd23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d58cf81256c4637b099e3e00f9838d99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d58cf81256c4637b099e3e00f9838d99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d58cf81256c4637b099e3e00f9838d99.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)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(3)若P为y轴上一点,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a13ec9a812274ad0839f20ba17348687.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,在平面直角坐标系中,已知△ABC的三个顶点的坐标分别为A(-3,5),B(-2,1),C(-1,3).
(1)若△ABC关于x轴对称的图形是△
,直接写出
、
、
的坐标;
(2)将△ABC绕点O按顺时针方向旋转90°得到△
,画出△
,并写出点A的对称点
的坐标;
(3)计算△
的面积.
(1)若△ABC关于x轴对称的图形是△
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.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)
(2)将△ABC绕点O按顺时针方向旋转90°得到△
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24dc97d6060d7bdcd077a4803545ec77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24dc97d6060d7bdcd077a4803545ec77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
(3)计算△
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c42451af24f0fd7dba027b7982ee7d3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/27/a6ba1962-356b-4fbf-9ef4-e0fbc79a2357.png?resizew=247)
您最近一年使用:0次