Question

If f(x)= 4-2x and g(x)=6x which expression is equivalent to (g-f)(3)

Answer 1

(g-f)(3) = 20

Explanation:

g(3)=6 * (3) = 18

f(3)= 4-2(3) = 4 - 6 = -2

So

(g-f)(3) = 18 - (-2) = 20