Answer:
Assuming you mean inverse rather than universe, [tex]f^{-1}[/tex] (x) = 3x-6
Step-by-step explanation:
To find the inverse of a function, start of by replacing f(x) with y. Then switch y and x.
y = (1/3)x + 2
x = (1/3)y + 2
Solve for y.
x - 2 = (1/3)y
3(x-2) = y
y = 3x-6
Replace y with [tex]f^{-1}[/tex](x)
