The position of an object moving along a line is given by the function s(t) = - 12t ^ 2 + 96t Find the average velocity of the object over the following intervals (a) [1, 4] (c) [1, 2] (b) [1, 3] ( d) [1, 1 + h] where h > 0 is any real number ( a) The average velocity of the object over the interval [1, 4] is (b) The average velocity of the object over the interval [1, 3] is ) The average velocity of the object over the interval [1, 2] is ( d) The average velocity of the object over the interval [1,1+h]| is