Consider the function f (x) defined by the following graph: y 1 4 3 2 X -4 -3 -2 -1 0 2 3 4 For each value of x = a , classify the function f (x) as continuous, having a jump, a removable or an infinite discontinuity. a) a =-3 ba=-1 c) a =2 d) a =0 e) a=3