Tentukan invers dari f(x)=3x-3

f(x) = 3x - 3
y = 3x - 3
y + 3 = 3x
x = (y + 3)/3
f⁻¹(x) = (x + 3)/3

Bab Fungsi
Matematika SMA Kelas XI

f(x) = 3x - 3 = y
3x = y + 3
x = (1/3) . (y + 3)
f⁻¹ (x) = (1/3) . (x + 3)