kw05412
kw05412
25-08-2017
Mathematics
contestada
K(-5,-2), M(5,4), S(-3,6), T(3,-4)
Respuesta :
mreijepatmat
mreijepatmat
25-08-2017
K(-5,-2) and M(5,4)
S(-3,6) and T(3,-4)
Let's calculate the slope m₁ of KM
m₁ = (y₂-y₁)/(x₂-x₁) → m₁ =(4+2)/(5+5) = 6/10 →m₁ = 3/5
Now let's calculate the slope m₂ of ST:
m₂ = (-4-6)/(3+3) → m₂ = (-10)/6 → m₂ = -5/3
We can conclude that KM and ST are perpendicular since thee product of their respective slopes (m₁).(m₂) = - 1
Proof: (3/5).(-5/3) = -15/15 = -1
Answer Link
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