Dx=-6+0/2=-3
Dy=0×6/2=3
D(-3;3) A(4;-4)
x-(-3)/4-(-3)=y-3/-4-3
x+3/7=y-3/-7
-7x-21=7y-21
-7x-21-7y+21=0
-7x-7y=0
7x+7y=0
D -cередина ВС
Dx=-6+0/2=-3
Dy=0×6/2=3
D(-3;3) A(4;-4)
x-(-3)/4-(-3)=y-3/-4-3
x+3/7=y-3/-7
-7x-21=7y-21
-7x-21-7y+21=0
-7x-7y=0
7x+7y=0
D -cередина ВС