I got AB: y = 6x + 7 so its slope is +6
AC: y = 0.75x + 0.25 so its slope is +0.75
BC: y = -x + 7 so its slope is -1
I am not sure but I believe the slope of AO = (AB + AC)/2 = 27/8
then i am stuck at finding the slopes of BO, CO.
with their slopes found and the coordinates of 3 vertices given, the equations of AO, BO, CO can be found? and then the common solution (x, y) to these three be found???