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misal x = 0
4(0) + 3y = 12
0 + 3y = 12
3y = 12
y = 12/3
y = 4
= (0,4)
misal y = 0
4x - 3(0) = 12
4x - 0 = 12
4x = 12
x = 12/4
x = 3
= (3,0)
Jadi grafik harus melalui titik (0, 4) dan (3,0)