Question

if f(x))= x/2 + 8, what is f(x) when x=10

Answer 1

10 divided by 2 is 5, 5 + 8 is 13
thus f(10)= 13
hope this helps

Answer 2

$f(x)= \frac{x}{2} + 8 \\ \\ f(10)= \frac{10}{2}+8=5+8=\boxed{13 }$