Answer:
The third one is the correct answer .
Because the x's don't have more than 1 y value .
All the other tables do, which makes those not a function, but since the third one has 1 x value for 1 y value, then it is a function.
It's the second to the top one
Step-by-step explanation:
because the positive y numbers correspond to a negative x 2 and vice versa
