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y-2 = 3(x-3)
y-2 = 3x-9
y=3x - 9 + 2
y = 3x -7
x₁ = 3
m = 3
y - y₁ = m(x - x₁)
y - 2 = 3(x - 3)
y - 2 = 3x - 9
y = 3x - 9 + 2
y = 3x - 7
Jadi persamaan garisnya adalah y = 3x - 7.