如图所示,直线
交函数
的图象于
、
两点,已知点
坐标为
,直线
交
轴于点
,连接
.
![](https://img.xkw.com/dksih/QBM/2021/4/21/2704779075076096/2706974939332608/STEM/58fda49f13cc4b2cac9cb3823e298ea1.png?resizew=201)
(1)将直线
向上平移
个单位,恰与函数
图象的左半支有唯一交点,求
的值;
(2)在线段
上取点
,使
∽
,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9355031ea0b2dc9cef3777621bc6d38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44c2e8697fef91db7c2696ecdf1299ba.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.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/d40b319212a7e7528b053e1c7097e966.png)
![](https://img.xkw.com/dksih/QBM/2021/4/21/2704779075076096/2706974939332608/STEM/58fda49f13cc4b2cac9cb3823e298ea1.png?resizew=201)
(1)将直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44c2e8697fef91db7c2696ecdf1299ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a855335176fc36a15017f50a8561348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5f517953a21c2a45fd8465072c44bfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
更新时间:2021-04-24 22:57:31
|
相似题推荐
解答题-问答题
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适中
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【推荐1】如图,在平面直角坐标系中,直线l经过原点,且与反比例函数图象 y=
交于点 A(1,2),点B(m,-2).分别过A,B作AC⊥y轴于C,BD⊥y轴于D,再以AC,BD为半径作⊙A和⊙B.
![](https://img.xkw.com/dksih/QBM/2020/2/11/2396643173744640/2396878105894912/STEM/0643d124ae73449ba8f7cec67005f3d9.png?resizew=223)
(1)求反比例函数的解析式及m的值;
(2)求图中阴影部分的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abb3a62e46296c417261156b51ec6b4.png)
![](https://img.xkw.com/dksih/QBM/2020/2/11/2396643173744640/2396878105894912/STEM/0643d124ae73449ba8f7cec67005f3d9.png?resizew=223)
(1)求反比例函数的解析式及m的值;
(2)求图中阴影部分的面积.
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真题
【推荐2】如图,一次函数
的图象与
轴、
轴分别交于点
,以线段
为边在第一象限作等边
.
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773761389387776/1773761389707264/STEM/b7ec022ca4cd4cf2bd45a4498fa0e2f1.png)
(1)若点
在反比例函数
的图象上,求该反比例函数的解析式;
(2)点
在第一象限,过点
作
轴的垂线,垂足为
,当
与
相切时,
点是否在(1)中反比例函数图象上,如果在,求出
点坐标;如果不在,请加以说明.
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773761389387776/1773761389707264/STEM/be38fa05662c46ce9517cd9af9a1a492.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773761389387776/1773761389707264/STEM/aca0f862c29d43cebf79299cd52081f2.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773761389387776/1773761389707264/STEM/845d8cd6437447409d8b0e880be68694.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773761389387776/1773761389707264/STEM/75385da12a12461592a9fc6a7483db36.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773761389387776/1773761389707264/STEM/39a2e3a35d844f99bbe6cc1f886fe017.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773761389387776/1773761389707264/STEM/2eb410ba7ef045f191e577908c2c1e87.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773761389387776/1773761389707264/STEM/b7ec022ca4cd4cf2bd45a4498fa0e2f1.png)
(1)若点
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773761389387776/1773761389707264/STEM/f9809ccf58d6424d8e93524a04b58ac6.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773761389387776/1773761389707264/STEM/0370cbd176d54bf9b0373050bfb59733.png)
(2)点
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773761389387776/1773761389707264/STEM/7d9a0b11eec34d6cb73a56384cbf66af.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773761389387776/1773761389707264/STEM/0e0a4b0e71b247ef994520bbe65ebef5.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773761389387776/1773761389707264/STEM/aca0f862c29d43cebf79299cd52081f2.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773761389387776/1773761389707264/STEM/e13b41e9353c4254bd4e04c7cde34891.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773761389387776/1773761389707264/STEM/f28dfad1e81646fc936af8c369c01622.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773761389387776/1773761389707264/STEM/cf73738afe59448a8f33bb3f14f2ea2e.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773761389387776/1773761389707264/STEM/0e0a4b0e71b247ef994520bbe65ebef5.png)
![](https://img.xkw.com/dksih/QBM/2017/8/1/1773761389387776/1773761389707264/STEM/0e0a4b0e71b247ef994520bbe65ebef5.png)
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【推荐3】如图,四边形OABC为矩形,点B坐标为(4,2),A,C分别在x轴,y轴上,点F在第一象限内,OF的长度不变,且反比例函数
经过点B.
(1)如图1,当F在直线y = x上时,函数图象过点B,求线段OF的长.
(2)如图2,若OF从(1)中位置绕点O逆时针旋转,反比例函数图象与BC,AB相交,交点分别为D,E,连结OD,DE,OE.
①求证:CD=2AE.
②若AE+CD=DE,求k.
③设点F的坐标为(a,b),当△ODE为等腰三角形时,求(a+b)2的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
(1)如图1,当F在直线y = x上时,函数图象过点B,求线段OF的长.
(2)如图2,若OF从(1)中位置绕点O逆时针旋转,反比例函数图象与BC,AB相交,交点分别为D,E,连结OD,DE,OE.
①求证:CD=2AE.
②若AE+CD=DE,求k.
③设点F的坐标为(a,b),当△ODE为等腰三角形时,求(a+b)2的值.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/26/6e165e62-0a59-4878-9a15-1e81a2122e0b.png?resizew=392)
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名校
【推荐1】在正方形
中,点
,
,
分别是
,
,
边上的一点,
垂直平分
,垂足为点
.
(1)如图1,证明:
;
(2)如图2,连接
交
于点
,连接
,
.证明:
是等腰直角三角形;
(3)如图3,若
,
,求四边形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](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/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/7/1e5bbdb3-0a2d-424d-8ed3-972a976c15d3.png?resizew=511)
(1)如图1,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0108b7adf654e50b1fce24602af4110f.png)
(2)如图2,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a424b50eaeafa6f302ffd95476cb86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b46c607b3deac746c0ef3389ad8f65c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f44ca79d5e12bd02c393ba7f0b31c8c9.png)
(3)如图3,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8fe17e6ead930bd98f9f7144251d463.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a78bf7adfcd680efff79823e6c6176d0.png)
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【推荐2】已知,如图,AB⊥BD,CD⊥BD,垂足分别为B、D,AD和BC交于点E,EF⊥BD,垂足为F,我们可以证明
成立,若将图中的垂直改为斜交,如图,AB∥CD,AB与BC交于点E,过点E作EF∥AB交BD于F,则
(1)
还成立吗?如果成立,给出证明;如果不成立,请说明理由.
(2) 请找出S△ABC,S△BED和S△BDC间的关系,并给出证明.
![](https://img.xkw.com/dksih/QBM/2011/11/15/1573281316044800/null/STEM/03390dafae164ecf92eb4ab90512271c.png?resizew=213)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b15c82abd98b00d976da8ba75155fe31.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b15c82abd98b00d976da8ba75155fe31.png)
(2) 请找出S△ABC,S△BED和S△BDC间的关系,并给出证明.
![](https://img.xkw.com/dksih/QBM/2011/11/15/1573281316044800/null/STEM/03390dafae164ecf92eb4ab90512271c.png?resizew=213)
![](https://img.xkw.com/dksih/QBM/2011/11/15/1573281316044800/null/STEM/cd3043b89c8d40b0b16eeaad09ebb948.png?resizew=246)
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