If f : R → R defined by f(x) = 3x – 4 is invertible then write f–1(x).
Given:- (i) f : R → R
(ii) f(x)=3x-4
Formula:-
(i)A function f : X → Y is defined to be invertible, if there exists a function g : Y → X
such that gof =Ix and fog = Iy .The function g is called the inverse of f and is denoted by f-1
For f-1(x)=y
f(y)=x
3y – 4 =x