Respuesta :

Answer:

  • A. 3

Step-by-step explanation:

Given

  • f(x) = x + 4 and
  • g(x) = x + 7

Find (g - f)(x):

  • (g – f)(x) =
  • g(x) - f(x) =
  • x + 7 - x - 4 =
  • 3

Correct choice is A