tentukan nilai p agar persamaan garis 2x+py-3=0 sejajar dengan garis x-3y+2=0

Bentuk umum persamaan
ax + by + c = 0

m = -a/b

2x + py - 3 = 0
a = 2
b = p
c = -3

m1 = -2/p

x - 3y + 2 = 0
a = 1
b = -3
c = 2

m2 = -(1)/(-3)
m2 = 1/3

Syarat sejajar m1 = m2
m1 = m2
-2/p = 1/3
p = 3 x (-2)
p = -6