Which of the following relations is a function?Select one of the options below as your answer:A. { (1, 2), (1, 3), (2, 8), (3, 9) }B. { (1, 2), (2, 3), (3, 4), (4, 5) }C. { (3, -1), (2, 3), (3, 4), (1, 7) }D. { (3, 0), (4, -3), (6, 7), (4, 4) }

Question

Which of the following relations is a function?Select one of the options below as your answer:A. { (1, 2),  (1, 3),  (2, 8),  (3, 9) }B. { (1, 2),  (2, 3),  (3, 4),  (4, 5) }C. { (3, -1),  (2, 3),  (3, 4),  (1, 7) }D. { (3, 0),  (4, -3),  (6, 7),  (4, 4) }

anonymous · Answer

B. is correct because the x-value isn't repeated.

anonymous · Answer

b is correct as the elements in domain should not be repeated......
ur right @Calcmathlete