If you would like to find the line that passes through these points, then 1. find the slope = (y2-y1)/(x2-x1) = (0-(-2))/(-3-3)=-2/6=-1/3 2. find the line passing through one of the points with the slope found above: y-y1=slope*(x-x1) y-3=-1/3*(x-(-2) y=-(1/3)x-(2/3)+3 y=-x/3 + 7/3 is the required line.