Function Inverse  Exercise 1  Verifying Inverses
Given the functions f(x) = 3x  4 and g(x) = (x + 4)/3, show that
these functions are inverses of each other by showing that (f o g)(x)
= x and (g o f)(x) = x. The justification has been provided 
no further justification is needed.
STATEMENT 
JUSTIFICATION 

Given Apply Definition of
Composition and Algebraic Properties of Fraction Cancellation and
Addition of Like Terms.

