Question

equacao da reta que passa pelos pontos (2,-5) e (8,1)

Answer 1

M = yb - ya / xb - xa = 1 + 5 / 8 - 2 = 7/6 = 1

y - ya = m ( x - xa )

y + 5 = 1 ( x - 2 )

y + 5 = x - 2

y = x - 7

x - y - 7 = 0