#A(6,3), B(2,3), C(6,9), D(2,9), " dilated about " E(6,3) " by factor "1/2#
#A'((x),(y)) = .5a + .5 e = .5*((6),(3)) + .5 * ((6),(3)) = ((6),(3))#
#B'((x),(y)) = .5b + .5 e = .5*((2),(3)) + .5 * ((6),(3)) = ((4),(3))#
#C'((x),(y)) = .5c + .5 e = .5*((6),(9)) + .5 * ((6),(3)) = ((6),(7))#
#D'((x),(y)) = .5d + .5 e = .5*((2),(9)) + .5 * ((6),(3)) = ((4),(7))#
#color(maroon)("Coordinates of the dilated rectangle are "#
#color(crimson)((6,3), (4,3), (6,7), (4,7)#