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Bab Persamaan Garis
Matematika SMP Kelas VIII

18] -3x + 2y = (-3) . 2
-3x + 2y = -6, sejajar, (-4, 0)
-3x + 2y = (-3 . -4) + (2 . 0)
-3x + 2y = 12
2y - 3x - 12 = 0

◎◎ C ◎◎

19] (A U B) = {1, 2, 3, 4, 6, 7}
(A U B)' = {5, 8, 9, 10}