Respostas

  • Usuário do Brainly
2014-06-16T15:05:20-03:00
X = (x₂ + x₁)/2
2 = (3 + x₁)/2
2 . 2 = 3 + x₁
4 = 3 + x₁
3 + x₁ = 4
x₁ = 4 - 3
x₁ = 1

y = (y₂ + y₁)/2
- 6 = (- 5 + y₁)/2
2 . (- 6) = - 5 + y₁
- 12 = - 5 + y₁
- 5 + y₁ = - 12
y₁ = - 12 + 5
y₁ = - 7

A(1, - 7)
1 5 1