6. Below is the graph of f (). For each of the given points determine the value of f (a) and lim f (x). If any of the quantities do not exist clearly explain why. x -+ a (a) a = -3 (b) a = -1 (c) a =1 (d) a = 3 what -2 -1 2 37. Below is the graph of f (). For each of the given points determine the value of f (a) and lim f (x). If any of the quantities do not exist clearly explain why. 2 + a (a) a = -4 (b) a =-2 (c) a = 1 (d) a = 4 - NW 75 -4 -3 -2 -1 1 2 5