如图,在平面直角坐标系中,一次函数y1=kx+b(k≠0)与反比例函数
(n≠0)交于A、B两点,过A作AC⊥x轴于点C,OC=3,cos∠AOC=
,点B的坐标是(m,﹣2).
![](https://img.xkw.com/dksih/QBM/2019/5/31/2215419858845696/2217159574306816/STEM/9e7db3374efc42f69d49044a8f6df38b.png?resizew=203)
(1)求一次函数与反比例函数的解析式;
(2)结合图象,当y1<y2时,直接写出自变量的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef87db1c975912adb1bbd9194c170aa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eac97e6740365c85ad857aff85cefbe5.png)
![](https://img.xkw.com/dksih/QBM/2019/5/31/2215419858845696/2217159574306816/STEM/9e7db3374efc42f69d49044a8f6df38b.png?resizew=203)
(1)求一次函数与反比例函数的解析式;
(2)结合图象,当y1<y2时,直接写出自变量的取值范围.
更新时间:2019-05-23 08:45:38
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【知识点】 反比例函数与几何综合解读
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【推荐1】如图,一次函数y=ax+b的图象与反比例函数
的图象交于A,B两点,与X轴交于点C,与Y轴交于点D,已知
,A(n,1),点B的坐标为(﹣2,m)
(1)求反比例函数的解析式和一次函数的解析式;
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(1)求反比例函数的解析式和一次函数的解析式;
(2)连结BO,求△AOB的面积;
(3)观察图象直接写出一次函数的值大于反比例函数的值时x的取值范围是 .
![](https://img.xkw.com/dksih/QBM/2018/11/13/2074745054117888/2075981326606336/STEM/e7f9106bb1ab40d78e641e3eeb7f8af9.png?resizew=181)
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【推荐2】如图,在平面直角坐标系
中,矩形
的顶点
在
轴上,顶点
在
轴上,
是
的中点,过点
的反比例函数图象交
于点
,连接
,若
.
![](https://img.xkw.com/dksih/QBM/2019/4/24/2189259349770240/2190231458390016/STEM/2259bf90b1b04fe8a2f30f4b76f8f4cd.png?resizew=218)
求过点
的反比例函数的解析式及
所在直线的函数解析式.
设直线
与
轴和
轴的交点分别为
,求
的面积.
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