Respuesta :

seljk
Hope this helps :) 

If you have anymore questions about it ask in the comments.
Ver imagen seljk
Hannah721
Use this formula...
(-4 + 8) / 2 , (8 + (-4)) / 2
From there you get...
4 / 2 , 4 / 2
Simplify and you get
(2 , 2)
Ver imagen Hannah721