The total 'x' distance is 11- (-1) = 12
'y' -8-(-3) = -5
the x and the y distances make up the legs of a right triangle ....pythagorean theorom to find the hypotenuse.....the length of the line betwen these points
12^2 + 5^2 = Length^2
144 + 25 = 169 = Lenght^2 Length = 13
I hope that is what you were asking
~jc
