Which of the following relations is not a function?

A. {(11, -9), (-9, 11), (4, -2), (-13, 13), (10, 3)}

B. {(7, 3), (-1, 9), (6, 15), (8, 0), (1, 9)}

C. {(-4, 3), (10, 14), (-5, 1), (-11, 3)}

D. {(14, 0), (-15, -10), (9, 3), (14, -1), (6, -8)}

Question

Which of the following relations is not a function?

            A.        {(11, -9), (-9, 11), (4, -2), (-13, 13), (10, 3)}

            B.        {(7, 3), (-1, 9), (6, 15), (8, 0), (1, 9)}

            C.        {(-4, 3), (10, 14), (-5, 1), (-11, 3)}

            D.        {(14, 0), (-15, -10), (9, 3), (14, -1), (6, -8)}

jdoe0001 · Answer

a function will have NO X-REPEATS