1) (4 marks) Given the function f(x) = x a. Determine the average rate of change on the interval -5 x 2. b. Is it possible to determine the instantaneous rate of change at x = 2? Explain why or why not. 2) (4 marks) Given the function g(x) = x 2x + 1, a. Estimate the instantaneous rate of change at x = 1. b. Will the instantaneous rate of change be the same at any x-value on the function? Explain why or why not.