2. (6 points) A point is moving on the graph of y' - 3x2 = 13, where y 2 0, so that at the moment when the x-coordinate of the point is 6 units, the r-coordinate is decreasing at the rate of 2 units per second. (a) Find the y-coordinate of the point at that moment. (b) Find the rate of change of the y-coordinate of the point. Given: Find