1 . 正方形
在平面直角坐标系中的位置如图所示,点
边不动,将正方形向左下方推动变形,得到菱形
的对应点分别为
,且点
在y轴上.若一个反比例函数经过点
,则该反比例函数的表达式为__________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/397d25d75153740fbd7668c9434a9123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294e89bec3585f7d42e000b82ae2ea10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfcebd452ffa6db613526db00491d0b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b3bd5e6bc2a0a277d279bb01af9584.png)
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2 . 如图,
,
两点在反比例函数
的图象上.若将横、纵坐标都是整数的点称为整点,则线段
,
及反比例函数图象上
,
两点之间的部分围成的区域(不含边界)中,整点的坐标为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167df7a654b81f747bb8b6380b62410c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c3de2343026200ecc235ae8438955b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c9940526785ca763da2dfa35e77c934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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3 . 如图,已知直线
交双曲线
于点
和点B,点
为x轴上一动点,直线
交直线
于点C,交双曲线于点D.
(2)若
,请求出m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eebeb0c65327c1472d14023a5027778.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c9ece4ff94b2b1c4cc7ee25000f996f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7d903b1ff09e933b73ef0f75fc861dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a4d5b8f171b0d8f2362d5e1a34f2bf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56ee81929c987732fcb379802eeef7a7.png)
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4 . 如图,已知
,
,
三点在反比例函数
的图像上,且
.
时,请比较
与
的大小关系,并说明理由;
(2)若
,
,求该函数的表达式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dbd6f5dd08ba6989c68a1053cc7d7a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/472c26566498301b9b91773afa463ba8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b4e747a488807a51b55987c9667b52d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6956752841370820f393dc0e58cf406.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10e468312d09c6563c9094b710a35a65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be604061cf1591f7069472269d4c9719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25cc982219b2e2e034fbfc2806703a6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1599a01b2fa9e7fdd9502ee8d2e825f8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a13763fe18854a6ff23c72b539496b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9521828daf8dfc4d62838591dffcb85b.png)
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真题
5 . 如图,
是等腰直角三角形,
,双曲线
经过点B,过点
作x轴的垂线交双曲线于点C,连接
.
(2)求
所在直线的解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50fdfa5407cfa15978f3557cacdf27c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6956752841370820f393dc0e58cf406.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a0d256036d52b784b8c68bfc8db69d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
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真题
6 . 小明在草稿纸上画了某反比例函数在第二象限内的图像,并把矩形直尺放在上面,如图.
(1)反比例函数表达式;
(2)点C坐标.
(1)反比例函数表达式;
(2)点C坐标.
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7 . 如图,平面直角坐标系中,反比例函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe3a78950f6a4bb479c7ec0d8e57b5b.png)
经过点
,过点
作
轴,垂足为
,连接
.
(2)①作
的垂直平分线,垂足为点
,交反比例函数图象于点
,交
于点
,交
轴于点
,并求点
的坐标
尺规作图,不写作法,保留作图痕迹
;
②求证∶
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe3a78950f6a4bb479c7ec0d8e57b5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56339a78e814bc0cb8f45cb2e23515bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05208a740627fac02220fd11c135d172.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae7a3e520a16d4fdd73c4e6a4ce7be0e.png)
(2)①作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07e37b122a7273e1251ea3860e74c896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87f8bcf2218cfa3239a1716578d6ff50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb49c7a82ce0257232b47b0b55f570e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
②求证∶
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab7d81f375b0c357f2b18296d5060347.png)
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8 . 在平面直角坐标系
中,反比例函数
(k为常数且
)上有一点
,且与直线
交于另一点
.
(2)过点A作直线
轴与直线
交于点C,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c80c26a794a844127aae7dee87c93b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cc52c5644789eb75dd5cf708053d69c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4de869ae6b6dc5b79fcae3de540b30bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/994cb7b1174165dd848310f2e24d1397.png)
(2)过点A作直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/177e105d92d91009c555bd2672fb1119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b5062be5cf27ae8089ad0c25d1b7c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6199413f1d78b2851456a4958d10cd5.png)
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真题
9 . 列表法、表达式法、图像法是三种表示函数的方法,它们从不同角度反映了自变量与函数值之间的对应关系.下表是函数
与
部分自变量与函数值的对应关系:
(1)求
、
的值,并补全表格;
(2)结合表格,当
的图像在
的图像上方时,直接写出
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bebb3b7f47e0decd48e64cb32aaa5903.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
1 | |||
1 | ________ | ||
________ | ________ | 7 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)结合表格,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bebb3b7f47e0decd48e64cb32aaa5903.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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10 . 如图,平面直角坐标系中,点
,
,
轴,
.
的角平分线,交
于点D,连接
;(尺规作图,不写作法,保留作图痕迹)
(2)求证:
;
(3)若反比例函数
的图象经过点B,求该函数的解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c9794b90c7775769f5ecfe86d1b4d8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c52e2f869fb1ee8b3f4b9ca6f7b464a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc195a9f7ac138e5a1ad87d5fa201c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3570a95f68349fcd9417fcda62e78e7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd95dc30c0344788b94289c464a3158e.png)
(3)若反比例函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
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