A=4 b=2 C= 6 d=-8 |ab + a(cd - ab - 4^2) + ac(d/a - bc/a +2^3)

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle

Answer pls man im trying to get out of summer school

Point r divides in the ratio 1 : 5. if the coordinates of e and f are (4, 8) and (11, 4), respectively, what are the coordinates of r to two decimal places?