Question

THIS IS URGENT PLEASE HELP Which relation is a function?

Question 3 options:



{(8, –1), (2, –1), (3, 8), (2, 5}



{(7, 12), (1, –5), (3, –10), (2, –5)}



{(1, 2), (1, 5), (1, –1), (1, 4)}



{(–3, 4), (–2, 5), (0, 9), (0, 12)}

Answer 1

The answer is B. This because No x value repeats. To be a function each x value must have only one y value.

Explanation: