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y = 5/3x - 1
m = 5/3 = D
2.-9y = 15 - 3x
y = 1/3x - 5/3
m1 = 1/3
m1 = m2
9y = 15 + 3x
y = 1/3x + 5/3
m2 = 1/3
m1 = m2
garis yang sejajar dengan garis 3x- 9y=15 adalah opsi A