If X is 1 then 1x2=2    X=1 Y=2

this equation is just another way of saying Y is twice as much as X,  so no matter what X is Y will always be double that even when talking about negatives, when this equation is graphed it will be a straight diagonal, that goes on forever, this equation is constant meaning it never changes
yea but how do I know were to start the table do I start it at 0 or -1 or just 1 for that matter?
when doing a table, start with your lowest data set, like i said this is a constant equation, if you are going to graph this data you should start at 0 or if your graph goes below 0 then start your table below 0