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p₁(- 3 , - 1)
p₂(5 , 2)
Hallas la pendiente(m)
Formula.
m = (y₂ - y₁)/(x₂ - x₁)
m = (2 - (- 1))/(5 - (- 3)
m = (2 + 1)/(5 + 3)
m = 3/8
Ecuación de la recta punto pendiente.
y - y₁ = m (x - x₁)
p₁ (- 3 , - 1)
m = 3/8
y - (- 1) = 3/8 (x - (- 3))
y + 1 = 3/8(x + 3)
y + 1 = 3x/8 + 9/8
y = 3x/8 + 9/8 - 1
y = 3x/8 + 9/8 - 8/8
y = 3x/8 + (9 - 8)/8
y = 3x/8 + 1/8
Respuesta.
y = 3x/8 + 1/8