Description: Learn to find the missing value in a table to make sure it represents a linear equation. Created by Sal Khan. So let's see this table right over here. Well looks like y increased by 3 and 1/2 is the same thing as 1 and 1/2. So in order for this to be a linear equation or a linear relationship, every time we increase by 1 in the x direction, we need to increase by 3/2.*Teacher Advisor is 100% free.