0,-3
To work this out I would use the midpoint formula. (x1+x2)/2 , (y1+y2)/2
Therefore, (3+-9)/2 , (-4+0)/2
                = -6/2.     ,  -4/2
                =  -3 , -2
Now we know the half way point from AB, now we will use the same formula but instead of point B we will substitue the midpoint to work out the 1/4 point
Therefore,   (3+-3)/2,  (-4+-2)/2
                  =. 0/2,    -6/2
                  =. 0, -3
Therfore the 1/4 way point from AB is 0,-3