Question

Which table represents a linear function

Answer 1

It's the first one 
x=1,2,3,4
y=1/2,1,1.\2,2

Answer 2

Hello!

A linear function is a function that follows the same rule throughout.

So the answer is the first one since x goes up by one every time (n+1) and y goes up by $\frac{1}{2}$ (n+$\frac{1}{2}$)

Hope this helps!