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

Question

Philoid · Accepted Answer

Formula:-

(i)A function f : X → Y is defined to be invertible, if there exists a function g : Y → X

such that gof =I_x and fog = I_y .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