FOR 15 POINTS
Which of the following relations represent a function?
{(-1,-3),(3,2),(3,7)}
{(-1,4),(2,7),3,7)}
{(-3,7),(3,-7),(3,7)}
{(-1,4),(-1,7),(3,5)}

Respuesta :

Answer:

{(-1,4),(2,7),(3,7)}

Step-by-step explanation:

This is the only answer with inputs that are not repeated, therefore it is the answer.