Decide Whether the Composite Functions, F ° G and G $$f ( x ) = \frac { x - 6 } { 4 } , \quad g ( x ) = 4 x + 6$$

Multiple Choice

Decide whether the composite functions, f ° g and g ° f, are equal to x.
- $$f ( x ) = \frac { x - 6 } { 4 } , \quad g ( x ) = 4 x + 6$$

A) Yes, yes
B) No, yes
C) No, no
D) Yes, no