slope=rise/run or if you have 2 points in (x,y) form then slope=(y₁-y₂)/(x₁-x₂) the first point is (x₁,y₁) the second point is (x₂,y₂) we have the points (-1,3) and (4,-7) x1=-1 y1=3 x2=4 y2=-7 subsitute (3-(-7))/(-1-4)=(3+7)/(-1-4)=10/-5=2/-1=-2 slope=-2/1
