Inverse of a Function f(x)=y  

作　　者：王雷[1] 

机构地区：[1]首都师范大学数学科学学院

出　　处：《中学生数学（高中版）》2009年第2期F0004-F0004,共1页Mathematics

摘　　要：For a function y=f(x)to have an inverse function,f must be one-to-one.Then for each x in its domian there is exactly one y in its range;furthermore,to each y in the range,there corresponds exactly one x in the domain.The correspondence from theFor a function y= f（x） to have an inverse function, f must be one-to-one. Then for each x in its domian there is exactly one y in its range; furthermore, to each y in the range, there corresponds exactly one x in the domain. The correspondence from the range of f onto the domian of f is, therefore, also a function. It is this function that is the inverse of f.

关 键 词：中等教育 英语教学 英文阅读 阅读理解 《Inverse of a FUNCTION f(x)=y》 

分 类 号：G633.41[文化科学—教育学]