Question

Which relation is a function?

{(3, 4), (2, 4), (5, 1), (3, 5)}

{(1, 4), (1, 3), (1, 2), (1, 1)}

{(1, 3), (2, 6), (3, 9), (4, 12)}

{(3, 4), (3, 3), (1, 2), (1, 5)}

Answer 1

its 1

Step-by-step explanation:

look it up big dig daddy

Answer 2

the third one.

Step-by-step explanation:

for it to be a function an x-value can never be the same. so therefore it’s the 3rd one.