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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.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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