~PGL
y = 2/3 x + 9
y - 2/3 x - 9 = 0
m = 2/3 → m' = -3/2
Maka PGL :
y - b = m( x - a )
y + 3 = -3/2 (x + 1)
2y + 6 = -3x - 3
3x + 2y + 9 = 0
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~PGL
y = 2/3 x + 9
y - 2/3 x - 9 = 0
m = 2/3 → m' = -3/2
Maka PGL :
y - b = m( x - a )
y + 3 = -3/2 (x + 1)
2y + 6 = -3x - 3
3x + 2y + 9 = 0