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Persamaan :
y -y₁ = x -x₁
y₂ -y₁ x₂ -x₁
y -(-2) = x -3
1 -(-2) 4 -3
y +2 = x -3
3 1
1(y +2) = 3(x -3)
y +2 = 3x -9
y = 3x -9 -2
y = 3x -11
3x -y -11 = 0
Itu jawabannya.