Let f : R → R be the function defined by f(x) = 4x – 3 for all x ϵ R. Then write f–1.
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
Given:-
(i) f : R → R
(ii) f(x) = 4x – 3 for all x ϵ R.
f(x)=y
4x-3=y