(08.01) The figure below shows the graph of f', the derivative of the function f, on the closed interval from x = -2 to x = 6. The graph of the derivative has horizontal tangent lines at x = 2 and x = 4. (20) (5, 0) (o, - 2) (3, -1X (4,-25) (-2, -3) Find the x-coordinate of each of the points of inflection of the graph of f. Justify your