Question

Which relation is a function?
(Points : 4)
{(1, 2); (2, 3); (3, 4); (1, 5)}
{(1, 2); (1, 3); (1, 4); (1, 5)}
{(1, 2); (2, 3); (3, 4); (2, 5)}
{(1, 2); (2, 2); (3, 2); (4, 2)}

Answer 1

is this one D @StudyShark2000

Answer 2

That one appears to be C {(1, 2; (1,3); (1,4); (1,5)}

Answer 3

ok thanks