Respuesta :

The second table would be the best choice.

Every x-factor is being divided by 7. Just because the 3 isn't there, doesn't mean that the domain (x) and the range (y) aren't congruent. The point for y=3 would be (21,3).

I hope this helps!
~cupcake
The second table, because x/2 = y

they all use the same equation, and so it is proportional

hope this helps