若正比例函数y=(1-2m)x的图象经过点A(x1,y1)和点B(x2,y2)当x1<x2时y1>y2.求m的取值范围.
问题描述:
若正比例函数y=(1-2m)x的图象经过点A(x1,y1)和点B(x2,y2)当x1<x2时y1>y2.求m的取值范围.
答
(1-2m)x1>(1-2m)x2
因为x1