Question

Which relation is a function?

Question 1 options:

{(3,2), (5,8), (3,−4)}

{(−1,6), (−2,7), (−3,6)}

{(5,7), (12,−3), (5,6), (12,7)}

{(3,5),(3,6)}

Answer 1

The second one because the x values are different.

Answer 2

The second one.
Since the others all have 2 same domains with different ranges.