Use a graphing utility to graph the curve represented by the parametric equations. Indicate the direction of the curve. Hypocycloid: X = 3(cos(9))3, y = 3(sin(6))3 Identify any points at which the curve is not smooth. (Select all that apply.) The graph is not smooth at anywhere 9 = 1/2n2r. The graph is not smooth at (0, 1:3). The graph is smooth everywhere. The graph is not smooth at (:3, 0). The graph is not smooth at x = n cos(6)