Question

10+1/2(4x-8)^2 what is f(3)

Answer 1

`f(x) = 10 + (1)/(2) {(4x - 8)}^(2) \\ \\ f(3) = 10 + (1)/(2) {(4 * 3 - 8)}^(2) \\ \\ f(3) = 10 + (1)/(2) {(12 - 8)}^(2) \\ \\ f(3) = 10 + (1)/(2) {(4)}^(2) \\ \\ f(3) = 10 + (1)/(2) * 16 \\ \\ f(3) = 10 + 8 \\ \\ \boxed{ \red{ \large{f(3) = 18}}}`