Question

Consider the functions f(x)=4^x and g(x)=x-3. The function y is defined as y=f(g(x)) state the equation for y.

Answer 1

Explanation:

To find y = f(g(x)) replace the x in f(x) by g(x):-

y = 4^(x - 3)

---> y = 4^x * 4^-3

---> y = (4)^x / 64