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Persamaan :
y -y₁ = x -x₁
y₂ -y₁ x₂ -x₁
y -(-5) = x -2
3 -(-5) -2 -2
y +5 = x -2
8 -4
-4(y +5) = 8(x -2)
-4y -20 = 8x -16
-4y = 8x -16 +20
-4y = 8x +4
-y = 2x +1
y = -2x -1
Jadi, jawabannya aalah a.