Question

find f(g(x)) and g(f(x)) and determine if functions f & g are inverses to each other?
1. f(x)=4x and g(x)=x/4

Answer 1

f(g(x)): substitute g(x) in for the x of f(x) so you get 4(x/4) or x
g(f(x)): substitute f(x) for the x of g(x) so you get (4x)/4 or x
since f(g(x)) and g(f(x)) are they same, yes they are inverses of each other.

Answer 2

Thank you very much !

Answer 3

No problem!