名校
1 . 如图所示,在平面直角坐标系中,矩形
与反比例函数
的图象相交于E、F两点,线段
所在的直线的解析式为
,其图象交坐标轴于D、G两点,连接
和
,边
分别在x轴和y轴上,点A坐标为
,不等式
的解集为:
.
回答下列问题:
(1)求
的面积.
(2)求证:
.
(3)若点P为x轴上任意一点,是否存在这样的点P,使得
为直角三角形,若存在,请直接写出P点坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95df9c09a491db2a1aab23a6f40aba9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02dd116a0c9e6820b98b2b368a65f687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cad4595d5352b2884568a59d8d766a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5739e9796473c2a3386a5ad0b2bdce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed18bd80c6c4142f68e89f4ad44570b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/928dab5a974a3fd468f7984cdc3a02c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b11ca45e50c85616f5d380a61a9e1796.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/6/a4d469f4-c785-4830-9ffb-3781eea54660.png?resizew=157)
回答下列问题:
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b14aeac55d519010de23642ac22cfb0b.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8500b0fa04667c1f634d6267fbea8a2.png)
(3)若点P为x轴上任意一点,是否存在这样的点P,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91b51d3992644d37dc71c9b5a97d515c.png)
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2 . 如图,在平面直角坐标系
中,反比例函数
的图象与直线
分别相交于点
,B两点.
(2)尺规作图:过O作直线
的垂线,垂足为点C.(保留作图痕迹,不写作法)
(3)在(2)的条件下,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c9940526785ca763da2dfa35e77c934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/812eed46a589bde8b7c78a81a8cf9b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bb51e77ce13329721f3f8ab1ad3add7.png)
(2)尺规作图:过O作直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(3)在(2)的条件下,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
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名校
3 . 如图,反比例函数
与一次函数
的图象交于点
和点B,点P是反比例函数在第一象限内的图象上的动点,且在直线
的上方.
的长度为 ;
(2)若点P的横坐标为1,试判断
的形状,并说明理由;
(3)若直线
与x轴分别交于M、N两点,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef854dfcbba9b7dedc1bc52f6332b011.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d585d2d6643471640905d234d9538c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/605b90949e9f64890e72db61d9649ff0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)若点P的横坐标为1,试判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
(3)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4acd79bb9fb06f7c806eb6e17e4b613.png)
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4 . 如图,在平面直角坐标系中,点
在反比例函数
的图象上,点O为坐标原点,直线
交反比例函数图象于另一点B,点C是反比例函数位于第一象限的图象上的任意一点,与点A不重合,过点A作
轴,过点C作
轴,点E为垂足,
相交于点D,连接
.
______;
(2)求证:
:
(3)当
时,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64ca8b2f7f906864086c9b87488e4557.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7385795d7eab9691e21172c51a97428.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0714d0369018449e1dfd8e372466c58a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2634263d383b0487281fdcf6fe3cc625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7e545f31f7cc57a31843f5adfd02941.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1752dd24deaa1925baa4602194b2ef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9672cc271c7f79973c34a1e179782762.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cf59a05141e19a1b99f219e3389eee7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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名校
5 . 如图,正比例函数
与反比例函数
的图象交于点
,过点
作
轴于点
,
点的横坐标为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/18/15c84b93-f867-44e7-adff-642456d43797.png?resizew=200)
(1)求
的值;
(2)请用无刻度的直尺和圆规作出线段
的垂直平分线;(要求:不写作法,保留作图痕迹)
(3)(2)中所作的垂直平分线与
交于点
,与
轴交于点
,连接
、
,求证:四边形
是菱形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d585d2d6643471640905d234d9538c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03517310ea1e913f709753592ac65ffd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2ea84cba8ccd585ad1da1fd204bc3e3.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/cd3304e23f3b0f9569c4140ca89b6498.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/18/15c84b93-f867-44e7-adff-642456d43797.png?resizew=200)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)请用无刻度的直尺和圆规作出线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
(3)(2)中所作的垂直平分线与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be64921f3dee97b81666b1473c0fbad5.png)
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6 . 如图,直线
与双曲线
相交于A、B两点,直线
与x轴相交于点C,点B的坐标是
,
,E为x轴正半轴上一点,且
.
的解析式是 ,直线
的解析式是 .
(2)求证:
.
(3)当
时,x的取值范围是 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed06ccefffc165f9c77250cd28301d8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85f1d4dc95793976cb3849cc25319eb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a8906ea29b00c5b1f2fa05314ae51b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9419302c045670b2f7384d6b0e7b7738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de32a8313c8c5719f542cc37bec9b13f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db85a7f4cbb87f9fd31248e6e0c9fed5.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f99df1a7b58018125b99578b779342.png)
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7 . 已知一次函数
的图象与反比例函数
的图象交于A,
两点,一次函数
的图象交y轴于点B.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/8/370160e1-fa5c-4719-af83-e0e9848b3b10.png?resizew=380)
(1)求点C的坐标和反比例函数的表达式;
(2)如图,直线
交反比例函数图象一象限分支于点F,连接
,作射线
轴.求证:射线
平分
;
(3)目前,数学家探究出三角形的“几何心”有四万余个,某校兴趣小组研究后定义:三角形内有一点,将三角形的某两个顶点分别与该点连接产生两条线段,若两条线段相互垂直且其中有一条线段平分一个内角,则称该点为该三角形的“蓉心”.点D、E分别是反比例函数
一、三象限分支上的点,连接
、
、
,若点B是
的“蓉心”,求点D的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c30fd97fafb3779aa4f4660f41e2939.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b0b612460326448de36e160c8d29af9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/635ef90f0464524d843d77e3f0c11d38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c30fd97fafb3779aa4f4660f41e2939.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/8/370160e1-fa5c-4719-af83-e0e9848b3b10.png?resizew=380)
(1)求点C的坐标和反比例函数的表达式;
(2)如图,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c791fbd6c5c91f2f5d3aaf2b899306c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/752fa646a2d9cfca34001748445301c9.png)
(3)目前,数学家探究出三角形的“几何心”有四万余个,某校兴趣小组研究后定义:三角形内有一点,将三角形的某两个顶点分别与该点连接产生两条线段,若两条线段相互垂直且其中有一条线段平分一个内角,则称该点为该三角形的“蓉心”.点D、E分别是反比例函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b0b612460326448de36e160c8d29af9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
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8 . 已知关于x的一次函数
与反比例函数
.
(1)求证:
与
的图象至少有一个交点.
(2)若
的图象与x轴的交点横坐标为
.
①求k的值;
②若
,求x的取值范围(直接写出范围).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd0aa17b53ea244016e6101b01fc3c3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd241b5007380f7ce62568cd54575d8.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd0aa17b53ea244016e6101b01fc3c3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd241b5007380f7ce62568cd54575d8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd0aa17b53ea244016e6101b01fc3c3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
①求k的值;
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75690b9ed9a6f79b0cc8a9d9ef6b2e73.png)
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2024-04-01更新
|
126次组卷
|
3卷引用:浙江省湖州市初中学校“TZ-8”共同体2023-2024学年九年级下学3月月考数学试题
9 . 在平面直角坐标系中有
,
,
,
.反比例函数
的图象如图所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/21/ceac1bbd-e407-4b99-934d-f37dce9731ce.png?resizew=192)
(1)若反比例函数经过点B,且交
于点D,求证:D为
的中点.
(2)若反比例函数与
的边界恰有两个公共点,请直接写出k的取值范围,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce7f6d278f2ef7a193b7eed7be6b3c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28c47f0cc43eaace61a1988d9b1be9b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7aeb2a8d1437eeb4482c3b6ad9f315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707f0fb81c5dcbf009aa64b38d20e1f8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/21/ceac1bbd-e407-4b99-934d-f37dce9731ce.png?resizew=192)
(1)若反比例函数经过点B,且交
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
(2)若反比例函数与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce7f6d278f2ef7a193b7eed7be6b3c5.png)
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10 . 反比例函数
中比例系数
的几何意义为:如图
,过双曲线
上任意一点
作
轴于点
、
轴于点
,则有
,所以
.
【问题背景】
如图2,点
为反比例函数
图象上任意一点,连接
,将射线
绕着点
顺时针旋转
交反比例函数
于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/2/f3ec09bd-f819-473e-a885-d3f69b19061a.png?resizew=532)
【理解应用】
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7742942db74554c55f225c975e24f2ae.png)
(2)连接
,若
时,求点
的坐标.
【拓展迁移】
(3)点
与点
为反比例函数
图象上一点,
的坐标为
,连接
,
,若
,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f787a90a3e8605c711763924ac98c23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7385795d7eab9691e21172c51a97428.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44ee82573986d4fa6a7ee1b5f397edae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea3a3db6d96518255f96ad7fc1ac98f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ada707c061972d4e70925b538482e4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3153f75598f7f166d83ff5067d8b6dc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f67e92e1c4e53868a01e17b641788ce.png)
【问题背景】
如图2,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/418957fc2065ba94c1c3971caa3e75ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07e37b122a7273e1251ea3860e74c896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae7a3e520a16d4fdd73c4e6a4ce7be0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c8b58020f4297dc52f1e082558bd745.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/2/f3ec09bd-f819-473e-a885-d3f69b19061a.png?resizew=532)
【理解应用】
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7742942db74554c55f225c975e24f2ae.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce92399b1b6ad421b4ebaa53bda8b5d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
【拓展迁移】
(3)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c8b58020f4297dc52f1e082558bd745.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bc387da3c10d0ffde2a41a935cc1331.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89228eb0607106eca7e6d012c3cee9bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e328ffd2038a4f4f32a8573cd51ae1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4fd4cd63ddbb347b14420390fbdd2b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
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