Question 5 4 N 2 3 4 5 To find the blue shaded area above, we would calculate: f()da = area Where: a = b = f(x) = Area = Question Help: Message instructor D Post to foruml Question in 1r Use the four-step definition of the derivative to find f'(x) if f(*) = 5x - 9x + 12. f(x + h) = f(x + h) - f(x) = f(x th) - f(z) h f' (x) = Question Help: Message instructor D Post to forum