Answer:
(0,-7)
(0,-3)
1st picture: DE: (-8,8.5).
DC:( -8,2.5)
AB:(-8.5, 6.5)
AC: (-8.5, 2.5)
2nd picture: -3/2
3rd picture answer is: AC=4/2=2 and DE=6/3=2
I am not sure about those answer but please tell me if it helps you
