Let r +1, for a E (-oo, 0) g(x) = 0. for x = 0 and x = 3 - 1, for r E (0, 3) U (3, 00). a) Sketch the graph of g b) Where is g continuous? Justify your answer. c) If g is not continuous at a certain point(s), can g be redefined at that point to make g continuous there