Jawabanmu

2014-03-13T20:10:27+07:00
X₁ = -5
y₁ = -2
m = -1/2
y - y₁ = m (x - x₁)
y - (-2) = -1/2 (x - (-5))
y + 2 = (-x - 5) / 2
y = -1/2(x) - 9/2
2y = -x - 9
x + 2y +9 = 0
1 5 1