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y = -3x +10
Maka, m₁ = -3
m₁ . m₂ = -1
-3 . m₂ = -1
m₂ = -1/-3
m₂ = 1/3
y -y₁ = m(x -x₁)
y -3 = 1/3(x -(-5))
y -3 = 1/3x +5/3 dikali 3 untuk menghilangkan penyebut, sehingga
3y -9 = x +5
3y = x +5 +9
3y = x +14
x -3y +14 = 0
Itu jawabannya.
3x + y = 10
a = 3
b = 1
x = 10
m₁ = -a/b
= -3/1
= -3
m₁ × m₂ = -1
-3 × m₂ = -1
m₂ = 1/3
y - y₁ = m(x - x₁)
y - 3 = 1/3(x - (-5))
y - 3 = 1/3(x + 5)
y - 3 = 1/3x + 5/3
3y - 9 = x + 5
3y = x + 5 + 9
3y = x + 14