Question

HELP PLZ I NEED IT ASAP!!
Which relation is a function?


A.
{(1, 2); (2, 5); (3, 2); (4, 5)}


B.
{(1, 2); (1, 3); (3, 2); (4, 2)}


C.
{(1, 2); (2, 3); (3, 4); (1, 5)}


D.
{(1, 2); (2, 3); (3, 4); (2, 5)}

Answer 1

it is a function if no 2 x values are the same. The y values can be repeated...just not the x ones. So can you tell me which ones have no 2 x values the same ?

Answer 2

@texaschic101 So it would be A?

Answer 3

yes..it is A

Answer 4

Thank you so much! @texaschic101

Answer 5

anytime :)