Which of the following choices does not show a function?
{(1, 1),(2, 2), (3, 3) }
{(-2,9).(5, 7), (4, 11) }
{(2,5), (3,7), (2, 9) }
{(1,5). (2,5),(3,5)}

Respuesta :

Answer:

{(2,5), (3,7), (2, 9) } is not a function

Step-by-step explanation:

It's because the domain, which is the x value, has the same number twice, which is 2.

Answer is (2,5), (3,7), (2,9)