Question

Which of the following set of coordinate pairs represent a function?

1. (-5, 3), (-1, 0), (3,-4), (-1,2)

2. (0,-4), (5,3), (-4,3), (3,2)

3. (1,5), (-1, 3), (3, 4), (1, 2)

4. (4, 4), (4, 3), (4, 2), (4, 1)

Answer 1

I'm absolutely certain that the answer is 2. (0,-4), (5,3), (-4,3), (3,2) because in a function, x does not repeat

I hope this helps, love!