Question 1 (15 Points) An equation is defined as y = f(x) = x - -x a) Determine the lim x. -x (3 points) X-1 b) Calculate the average rate change of the function between x=1 and x=3 (5 points) c) Determine the derivative of the function y = f(x) = x x using the limit formula below and find f'(2). Please use only the limit formula and no other formula (7 points) f'(x) = lim h0 f(x+h) f(x) h