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para ello debemos conocer las pendientes
pendiente BC
m = (y₂ - y₁)/(x₂ - x₁)
m = (2 + 4)/(3 + 1)
m = 6/4
m = 3/2
las pendientes perpendiculares cumplen
(m)(m₁) = -1
(3/2)(m₁) = -1
m₁ = -1/(3/2)
m₁ = -2/3
si pasa por (-5, 6)
usamos
y - y₁ = m(x - x₁)
y - 6 = (-2/3)(x + 5)
3(y - 6) = (-2)(x + 5)
3y - 18 = -2x - 10
2x + 3y - 18 + 10 = 0
2x + 3y - 8 = 0
pendiente AC
m = (2 - 6)/(3 + 5)
m = -4/8
m = -1/2
la perpendicular tiene pendiente de
(-1/2)(m₁) = -1
m₁ = -1/(-1/2)
m₁ = 2
si pasa por (-1, -4)
y + 4 = 2(x + 1)
y + 4 = 2x + 2
2x - y + 2 - 4 = 0
2x - y - 2 = 0
la pendiente AB
m = (-4 - 6)/(-1 + 5)
m = -10/4
m = -5/2
la perpendicular tiene pendiente de
(-5/2)(m₁) = -1
m₁ = -1/(-5/2)
m₁ = 2/5
si pasa por (3,2)
y - 2 = (2/5)(x - 3)
5(y - 2) = 2(x - 3)
5y - 10 = 2x - 6
2x - 5y - 6 + 10 = 0
2x - 5y + 4 = 0