A bug crawling across the Cartesian plane: Its position at time t seconds is x(t) = (1 + t)^5, y(t) = 2 - 3t. The temperature at any point (x, y) on the plane is given by T(x, y). Furthermore, when x = 3, we know that T_x = and T_y. At what rate is the temperature rising for the bug when x = 32?