Question 70309
THE DISTANCE BETWEEN THE X POINTS HERE ARE 0&-6 SO WE DIVIDE THE DIFFERENCE BY 2
(0-6)/2=-6/2=-3  SO WE EITHER ADD A -3 TO THE 0 POINT OR SUBTRACT A -3 FROM THE -6 POINT THUS WE GET -3 FOR THE X COORDINATE. 
(8-0)/2=8/2=4 SO WE EITHER ADD THIS TO THE 0 OR SUBTRACT IT FROM THE 8 & WE GET 4 FOR THE Y COORDINATE.(-3,4)
-----------------------------------------------------------------------------
(-3-3)/2=-6/2=-3 ADD TO THE 3 OR SUBTRACT FROM THE -3 & WE GET 0 FOR THE X COORDINATE
(-3-5)/2=-8/2=-4 ADD TO THE -4 OR SUBTRACT FROM THE 5 & WE GET 1FOR THE Y COORDINATE (0,1)