Respostas

  • Usuário do Brainly
2014-06-25T11:18:29-03:00
S: - 2x - 5y + 8 = 0

- 2x - 5y + 8 = 0
- 5y = 2x - 8 . (- 1)
5y = - 2x + 8
y = (- 2/5)x + 8/5

m (coeficiente angular ou declividade) = - 2/5

y - y₀ = m(x - x₀)
y - (- 1) = - 2/5 . (x - 3)
y + 1 = - 2/5 . (x - 3)
5 . (y + 1) = - 2 . (x - 3)
5y + 5 = - 2x + 6
- 2x + 6 = 5y + 5 . (- 1)
2x - 6 = - 5y - 5
2x + 5y - 6 + 5 = 0
2x + 5y - 1 = 0
5y = - 2x + 1
y = (- 2/5)x + 1/5
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