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x = x’ – 6 dan y = y’ + 3 disubstitusi
2
ke y = x + 4x – 12
2
y’ + 3 = (x’ – 6) + 4(x’ – 6) – 12
2
y’ + 3 = (x’) – 12x’ + 36 + 4x’ - 24 -12
y’ = (x’) – 8x’ – 3
2
2
Jadi bayangannya: y = x – 8x – 3
14
