Respostas

  • Usuário do Brainly
2014-06-17T14:09:35-03:00
X = (x₂ + x₁)/2
3 = (8 + x₁)/2
2 . 3 = 8 + x₁
6 = 8 + x₁
8 + x₁ = 6
x₁ = 6 - 8
x₁ = - 2

y = (y₂ + y₁)/2
- 10 = (4 + y₁)/2
2 . (- 10) = 4 + y₁
- 20 = 4 + y₁
4 + y₁ = - 20
y₁ = - 20 - 4
y₁ = - 24

A(- 2, - 24)