You can
put this solution on YOUR website!You need to change it into

form.

Divide both sides by 3

Your slope is

and your Y-intercept is 0

So looking at your graph, you can see that the points that the line crosses are at (0,0), (3,1), (-3,-1), (6,2),(-6,-2) and so on.
How many points do you need? Just add 3 to the X value and 1 to your Y value.
Hope this helps!