Question

1. Which relation is a function?

I. {(2, 4), (1, 7), (3, 0), (5, 4)}
II. {(3, 6), (3, 6), (8, 6), (8, 10)}
III. {(4, 1), (2, 5), (8, 3), (4, 6)}
(Points : 1)
I only

II only

I and II

II and III

Answer 1

I only, because no domain to pairs more than once time to codomain

Answer 2

1 only because every element of domain should have one image in co domain

Answer 3

thank you guys

Answer 4

yw