Which of the following relations is a function?
A. (-9, 0) (-2,5), (-9, -3), (1,9)
B. (-9, 2), (-2, 3), (1,7), (6,2)
C. (-2,-2), (-9,-5), (1,8), (1, 2)
D. (6,-10),(-9,7), (6,6), (-9, 12)
Please help me
For a function to be considered a function, every input can have only one output. In this case, the input would be x and the out put would be y. The answer would be B because it is the only answer that doesn't have a repeating x with a different y example. For example, D would not be a function because it has two points that contain 6 with a different y value. (6,-10) (6,6).
