Problem 5. Answer the following questions based on the graph of f below. - 3 -2 5 8 (a) Give numeric values for each of the following. Write "DNE" if the value does not exist and "co" or "-co" if appropriate. f (1) = f (3) = lim f (x) = x-1 lim f (x) = x-3 lim f (x) = *-+3+ him f (x) = (b) Find a value of a for which lim f(x) exists, f(a) exists, and lim f (x) # f(a) a=