如图,平面直角坐标系中三点,
、
、
,请解答下列问题:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/13/710d54b0-1640-4f45-b8be-316d0043be17.png?resizew=286)
(1)在x轴上找出点D,连接
,使
的和最小;
(2)在y轴上找出点E,连接
,使
的和最小;
(3)直接写出点E坐标__________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d54b2ba88b62f4fec5e5cd458b06892.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c38ba345bae8891bfbeb9e9607aa608.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a54900891591c8af36acfea73b6caac9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/13/710d54b0-1640-4f45-b8be-316d0043be17.png?resizew=286)
(1)在x轴上找出点D,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fb7c9b5376c6d491e743b710bc25701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa11caeb1ac9707b81b6e5739ffd268.png)
(2)在y轴上找出点E,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ed3797a759dca7272c4f8a2434423ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c89db4b3b778decf6946e4800b68284e.png)
(3)直接写出点E坐标__________.
更新时间:2023-10-31 16:08:51
|
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,直线
与x轴和y轴分别交于点A,B,直线
与y轴交于点
,
与
交于点
,过点C作
轴于E.
(1)求
的长;
(2)点P是x轴上一动点,过点P作x轴的垂线,分别与直线
,
交于点M,N,设点P的横坐标为t,线段
的长为m,
的面积为S,请先画出图形,再求S关于t的函数关系式;
(3)在(2)的条件下,
①当
时,m的最大值是________;
②当t的值为________时,以M、N、C、E为顶点的四边形为平行四边形.(直接写出答案)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af744b7c9c2fb2daf3956b44a69f1a8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/655bb44585074bfd0a38132e7f4eaede.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68abace45b6de5e597f96f25b767d7c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03e6dc08b0ba0a0bf43d9395da447b5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/18/a80d3bd8-3aff-49b2-8d51-1eb451e2944f.png?resizew=134)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)点P是x轴上一动点,过点P作x轴的垂线,分别与直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12225a1a1eda07908309f8100cc34726.png)
(3)在(2)的条件下,
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86d496c21a6705b3ff23fe492fbc581f.png)
②当t的值为________时,以M、N、C、E为顶点的四边形为平行四边形.(直接写出答案)
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【推荐2】星期天小刚从家出发到离家36千米的图书馆学习,他先从家出发骑共享单车到公交车站,等了12分钟后,又乘公交车1小时到达图书馆(小刚骑共享单车的速度不变,公交车匀速行驶,小刚家、公交车站、图书馆依次在一条笔直的公路旁).如图是小刚从家出发离公交车站的路程y(单位:千米)与他从家出发的时间x(单位:小时)之间的函数图象.
![](https://img.xkw.com/dksih/QBM/2022/7/15/3022989324566528/3054110624186368/STEM/1edaa96926794af095f7fe6ad6b99ea6.png?resizew=145)
(1)小刚骑共享单车的速度是________千米/小时;
(2)求小刚乘公交车期间,y与x的函数解析式,并写出x的取值范围;
(3)当x为何值时,小刚离公交车站的距离是3千米?
![](https://img.xkw.com/dksih/QBM/2022/7/15/3022989324566528/3054110624186368/STEM/1edaa96926794af095f7fe6ad6b99ea6.png?resizew=145)
(1)小刚骑共享单车的速度是________千米/小时;
(2)求小刚乘公交车期间,y与x的函数解析式,并写出x的取值范围;
(3)当x为何值时,小刚离公交车站的距离是3千米?
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【推荐1】如图,双曲线y1 =
与直线y2=4x交于点A(1,m)、B.
(1) 直接写出:①k的值为 ;②m的值为 ;
(2) 点C是双曲线y1=
(x>0)上异于点A的一点,作直线AC、BC与x轴分别交于E、D.
①若OA=OC,求DE的值;
②若CE:CB=1:4,直接写出△CDE的面积为 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abb3a62e46296c417261156b51ec6b4.png)
(1) 直接写出:①k的值为 ;②m的值为 ;
(2) 点C是双曲线y1=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abb3a62e46296c417261156b51ec6b4.png)
①若OA=OC,求DE的值;
②若CE:CB=1:4,直接写出△CDE的面积为 .
![](https://img.xkw.com/dksih/QBM/2019/3/13/2159693614145536/2165853251862528/STEM/ab7fc865cddf40d0ab1759520c8dc162.png?resizew=149)
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【推荐2】在平面直角坐标系xOy中,已知图形W和直线l,给出如下定义:在图形W上存在一点Q,使得点Q到直线l的距离小于或等于k,则称图形W与直线l“k关联”.设图形W为线段AB,其中点A(t,0),点B(t+2,0).
![](https://img.xkw.com/dksih/QBM/2022/5/14/2979121056841728/2981594602151936/STEM/c4f1c794-d1b8-44d8-b158-feacc848ac5e.png?resizew=380)
(1)线段AB的长是______;
(2)当t=1时,
①已知直线
,点A到该直线的距离为_______;
②已知直线
,若线段AB与该直线“
关联”,求b的取值范围;
(3)已知直线y=x+1,若线段AB与该直线“
关联”,则t的取值范围是______.
![](https://img.xkw.com/dksih/QBM/2022/5/14/2979121056841728/2981594602151936/STEM/c4f1c794-d1b8-44d8-b158-feacc848ac5e.png?resizew=380)
(1)线段AB的长是______;
(2)当t=1时,
①已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa7090adf670566a2d7ce5903924d72f.png)
②已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9bd144e0e96e4236a14523e0729cacb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
(3)已知直线y=x+1,若线段AB与该直线“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
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解答题-作图题
|
适中
(0.65)
【推荐1】横坐标和纵坐标都是整数的点称为格点.如图,
的顶点都是格点,M为AB上一点,仅用无刻度直尺画图(保留作图痕迹),并回答问题.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/13/96db1219-d48b-4d97-9d44-3e53a346e827.png?resizew=369)
(1)画
关于y轴对称的
;
(2)画
的高
;
(3)画M点关于y轴的对称点
;
(4)探究与
有一条公共边且与
成轴对称的格点三角形,直接写出满足条件的三角形的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/13/96db1219-d48b-4d97-9d44-3e53a346e827.png?resizew=369)
(1)画
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(2)画
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(3)画M点关于y轴的对称点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b104090ea2ac34be58a76a4e0e95cb3.png)
(4)探究与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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解答题-问答题
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【推荐2】在平面直角坐标系
中,直线
表示经过点
,且平行于
轴的直线.给出如下定义:将点
关于
轴的对称点
,称为点
的一次反射点;将点
关于直线
的对称点
,称为点
关于直线
的二次反射点.例如,如图,点
的一次反射点为
,点
关于直线
的二次反射点为
.已知点
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/1/6faf45aa-5bb1-4967-8b5b-8d3ac195ca1c.jpg?resizew=306)
(1)点A的一次反射点为 ,点A关于直线
:
的二次反射点为 ;
(2)点B是点A关于直线
:
的二次反射点,则a的值为
(3)设点A,B关于直线
:
的二次反射点分别为
,
,求四边形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be03641c9e23456c63a8eb57a3540f62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b67c623950b5795d5fb4daeb8102a8df.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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/407417c2fd059a0cbb54f27edb8876bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73c4d7970f1fd21028987430c3ea134e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b11449658adfc07dcf4fc0b25e7ed7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28fea03d132da1d1f4d0daf275040499.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0310ce4692c85c9702f564923a55f98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ec5221f29d69b859875d2d56a885b12.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/1/6faf45aa-5bb1-4967-8b5b-8d3ac195ca1c.jpg?resizew=306)
(1)点A的一次反射点为 ,点A关于直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
(2)点B是点A关于直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54b53b86bd516400d6fa7dabb3603f31.png)
(3)设点A,B关于直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fce9427c9b17e4d3cda0c3ff3e2e14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca331dbb0b66c30709343013e16d0731.png)
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解答题-作图题
|
适中
(0.65)
【推荐1】如图,
在平面直角坐标系中,其中,点
的坐标分别为
,
.
(1)作
关于直线
对称的
,其中,点
的对称点分别为点
;
(2)直接写出
三点的坐标:
____________、
____________,
____________;
(3)直接写出
的面积____________;
(4)若直线
上有一点
,要使
的周长最小,请在图中画出点
的位置.(保留画图痕迹)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a9613784333ac918481a32c50dcf39d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fac09e4d97f0b741da92eea4867278af.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/31/1b311020-1957-47f9-bb8b-2cfda357ac83.png?resizew=201)
(1)作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4180dae966f648d368a10edf3b7e3c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df2c4f20594ab1443c0d8dcce42895f3.png)
(2)直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2a5a1f585c19f582edbb8cf73c58c6b.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)
(3)直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a715009a5804dc935ade37f5ac51591.png)
(4)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357265c532428e886a643e8e653eec9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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解答题-作图题
|
适中
(0.65)
【推荐2】如图,在平面直角坐标系中,直线是第一、三象限的角平分线.
(1)仔细观察图形,容易发现点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40630a669f4eedf626bc24851df10c85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a812a9b58ccba331cfd21d244329af01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20b8067c01487b26eb7ebc723cca9e7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6907b7277627d7681ade8dd036eb7b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5326817f9af012432a202749d1df59f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5326817f9af012432a202749d1df59f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
(2)结合图形及以上三组点的坐标,我们发现:坐标平面内任一点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827539d066d1b78e7ef8bc1569864971.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/762bfc20a2da28b3c59225851ea40036.png)
(3)已知两点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b06c1d549fc405f2fb955bebb561765.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff292849893a0f20276c9fcb42e14e95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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