Answer:
1. 4
2. -4
Explanation:
You plug in the number given in the parentheses into the function(s) as x
for #1:
since its f(4)
you would do the following -> f(4) = 2(4) - 4 hence the answer of 4.
for #2:
since its g(2)
you would do the following -> g(2) = 2^2 - 4(2) hence the answer of -4