Question

MEDAL WILL BE REWARDED

Determine which set of ordered pairs is a function.
A.
{(–1, 3), (1, 4), (–1, 5)}
B.
{(5, 3), (–6, 3), (–2, 4)}
C.
{(0.5, 1.6), (1, 1.75), (1.5, 2.3), (0.5, 3.6)}
D.
{(1, 2), (–5, 4), (3, 6), (–5, 2)}

Answer 1

Functions can't cross horizontal, right? So, they can't have the same x value. That means that the answer is B, because none of the x values are the same.

Answer 2

I THINK ITS B BUT IM NOT SURE

Answer 3

THANK YOU