Jawabanmu

2014-02-14T12:58:45+07:00
1. misal f(x) = y
y = 3x + 6

3x = y - 6

x = (y-6)/3
f^-1(y) = (y - 6)/3
f^-1(x) = (x - 6)/3 (b
2014-02-14T13:18:38+07:00