" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
2x -4 = y
y = 2x -4
maka, m₁ = 2
m₁ . m₂ = -1
2 . m₂ = -1
m₂ = -1/2
y -y₁ = m(x -x₁
y -5 = -1/2(x -(-1))
y -5 = -1/2x -1/2 dikali 2 untuk menghilangkan penyebut, sehingga
2y -10 = -x -1
2y = -x -1 +10
2y = -x +9
atau
x +2y +9 = 0