Composite Function

A composite function is the calculation of two functions
f(x) = x(2) + 2
g(x) = 6x + 1

If we wanted to calculate g(x) first and then f(x) it is written as g(f(x))

You always calculate the function on the inside first.
f(g(x)) != g(f(x))
The order of the composite functions is very important