Respostas

  • Usuário do Brainly
2014-06-13T13:32:50-03:00
M = (y2 - y1)/(x2 - x1)
m = (3 - 1)/(0 - 2)
m = 2/- 2
m = - 2/2
m = - 1

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