已知反比例函数的图象经过点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/397d7476fadbc4f22e4c7c4fd693a57f.png)
(1)求这个反比例函数的表达式;
(2)点
,
是否在这个函数的图象上
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/397d7476fadbc4f22e4c7c4fd693a57f.png)
(1)求这个反比例函数的表达式;
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e50a1027164f2dd75450ad8d83386f33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a3f9d5a2752ca0a9cf9f5b8ad62d9fe.png)
22-23九年级上·湖南怀化·期中 查看更多[4]
湖南省怀化市麻阳苗族自治县锦江中学2022-2023学年九年级上学期期中数学试题(已下线)湖南省岳阳临湘市第三中学2023-2024学年九年级上学期第一次月考数学试题湖南省怀化市洪江市实验中学2023-2024学年九年级上学期月考数学试题(已下线)专题6.27 反比例函数(全章知识梳理与考点分类讲解)-2023-2024学年九年级数学上册基础知识专项突破讲与练(北师大版)
更新时间:2023-08-20 16:32:54
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(0.65)
【推荐1】已知反比例函数
(
)的图像经过点A(2,3).
(1)求函数解析式;
(2)当x=-4时,求反比例函数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c80c26a794a844127aae7dee87c93b.png)
(1)求函数解析式;
(2)当x=-4时,求反比例函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
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【推荐2】如图,在平面直角坐标系
中,直线
经过点
与 y 轴交于点 B,与反比例函数
的图像交于点
,过B作
轴,交反比例函数
的图像于点D.连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/12/f59d236e-e7a3-4ac1-b8f5-18616faeba95.png?resizew=155)
(1)
,
,不等式
的解集是 ;
(2)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa46d62c44bb9e3640f6854c3f70c06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b9ef0e157688d5be517d9fb98a8571c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03517310ea1e913f709753592ac65ffd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/699ed0555980cf70801bfd21b8159ee5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9de7fcbcb1ef0134d70156bb19852ca5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03517310ea1e913f709753592ac65ffd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20289a64fad08d58fcb80a6799330adf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/12/f59d236e-e7a3-4ac1-b8f5-18616faeba95.png?resizew=155)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03b79ecc787842e1306cb3598286c694.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
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【推荐1】已知
,
与
成正比例,
与
成反比.当x=1时,y=﹣12;当x=4时,y=7.
(1)求y与x的函数关系式和x的取值范围;
(2)当x=
时,求y的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27268abd2678be008df3513334b4256d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8aca16ad7b2e7c21bb5555a12578831.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cdf7aaf44733c758606ff325047ab1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d215e8b9a565024fc6ef1a3c7a4675e1.png)
(1)求y与x的函数关系式和x的取值范围;
(2)当x=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10402e4ddd0d323cc1ae83801ae976db.png)
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真题
【推荐2】如图,已知点
、
在反比例函数
的图象上,过点
的一次函数
的图象与
轴交于点
.
、
的值和一次函数的表达式;
(2)连结
,求点
到线段
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b081a3d49f59c6a96a8afb7511f91875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d572e5292916663894daeb435b5230.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90890fb829fc21fc1d827aecec597fc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52f6dd0159f0fe46dbc3f4e493f8d3e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)连结
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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