7. Sketch the curve f (x) = 2x (x+2)2 with derivatives: f' (x) = - 2(x-2) (x+2)3 " and f" (x) = 4(x-4) ( x + 2 ) 4 a) x-intercepts and y-intercepts (if they exist). [COMM 1 mark] b) The equation(s) of any vertical and horizontal asymptotes. [COMM 1 mark] c) The critical point(s) and intervals of increasing and decreasing. [APP 4 marks] d) The point(s) of inflection and intervals of concavity. [APP 4 marks] [COMM 3 marks] w