Question 1. [25 marks] The function fi (x) is given by the graph. 5 Use a reasonable approximation in all questions below. (a) What is fi(5)? (b) Find lim fi(x), lim fi(x). I- +5- I +5+ (c) Find lim f, (x) if it exists. Justify your answer. (d) Is fi continuous at x = 5? Justify your answer. (e) Is fi continuous at z = 27 Justify your