Question 8 1 pts Find the relative extrema of the function f(x) - 8x - 120x3 + 43. relative maximum at a = -3 and a = 3; relative minimum at x = 0. O relative maximum at a = 3; relative minimum at x = -3. O relative maximum at a = 0; relative minimum at x = -3 and x = 3. no relative maximum; relative minimum at x = 0. O relative maximum at a - -3; relative minimum at x = 3. D Question 9 1 pts Determine the a coordinates of the points of inflection for the function f(z) = 325 - 160x3 + 43x - 10. Ox = 0, x = 4, and x = -4 O x = 0 and x = 4 Only = = 0 Or = -4 and x = 4 O x = 0 and