Find the instantaneous rate of change for the function at the given value. f(x) = x+5x at x= -2 The instantaneous rate of change at x = -2 is Find the average rate of change of the function over the given intervals. f(x) = 8x + 8; a) [5,7], b) [2,2] 3 a) The average rate of change of the function f(x) = 8x + 8 over the interval [5,7] is (Simplify your answer.) b) The average rate of change of the function f(x) = 8x + 8 over the interval [-2,2] is (Simplify your answer.) The cost to transport a mobile home depends on the distance, x, in miles that the home is moved. Let C(x) represent the cost to move a mobile home x miles. One firm charges as follows. Cost per Mile Distance in Miles 0