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Describe the following relations using the roster method. (a) The graph of relation A 2 1 -4 -3 -2 -1 1 2 3 4 O A = {(-2, -3), (-3, -1), (-1, -1), (-2, 1), (-2, 0), (1, -3)} O A = {(-3, 2), (-1, 3), (-1, 1), (1, -2), (0, 2), (3, 1)} O A = {(2, -3), (3, -1), (1, -1), (-2, 1), (2, 0), (1, 3)} O A = {(-3, -2), (-1, -3), (-1, -1), (1, -2), (0, -2), (-3, 1)} O A = {(-3, 3), (-1, 1), (-1, -2), (1, 2), (0, 1), (3, 2)} (b) The graph of relation B 2 1 X -3 - 2 - 1 2 3 -1 -2 -3 O B = {(x, y) x = 1, y 3} O B = {(x, y) x