Respuesta :

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If ABCD is the rectangle, then AB and BC are perpendicular.

Let m₁ and m₂ - slopes of perpendicular lines. Therefore

m₁m₂ = -1 → m₂ = -1/m₁.

We have m₁ = 2/3 then m₂ = -1/(2/3) = -3/2.

Answer: The slope of BC is -3/2.

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