Respuesta :

Answer:

the second answer choice

Step-by-step explanation:

the first number shouldn't repeat in each equation

hope it helps! :)

Answer:

{(5,6), (6,5), (4,3), (9,0)}

Step-by-step explanation:

The answer is {(5,6), (6,5), (4,3), (9,0)} because there are no repeating x values.

For it to be a function there can't be more than one of the same x values (input).

Hope this helps