Question

if f(x) is an invertible function, defined as f(x) =3x-4/5, write f inverse of (x)

Answer 1

Given f(x) = 5x+4

Let f(x) = y [ here x=f inverse (y)]

5x+4=y

5x=y-4

x= y-4/5

f inverse (y) = y-4/5

Inverse of f(x) is f inverse (x) = x-4/5