SOLUTION: Which of the following relations is a function? A. { (1, 2), (1, 3), (1, 4), (1, 5) } B. { (1, 3), (2, 3), (4, 3), (9, 3) } C. { (5, 4), (-6, 5), (4, 5), (4, 0) } D. { (6,

Algebra ->  Functions -> SOLUTION: Which of the following relations is a function? A. { (1, 2), (1, 3), (1, 4), (1, 5) } B. { (1, 3), (2, 3), (4, 3), (9, 3) } C. { (5, 4), (-6, 5), (4, 5), (4, 0) } D. { (6,      Log On


   

Question 671240: Which of the following relations is a function? A. { (1, 2), (1, 3), (1, 4), (1, 5) } B. { (1, 3), (2, 3), (4, 3), (9, 3) } C. { (5, 4), (-6, 5), (4, 5), (4, 0) } D. { (6, -1), (1, 4), (2, 3), (6, 1) }
Answer by BedrockFist(9) About Me  (Show Source):
You can put this solution on YOUR website!
If x repeats in a set if numbers. It is not a function.
So B is your answer because no x value is the same in that set.