I’m so confused. Can somebody please explain to me..
Answer choices are .
f1(x)=9x+18
f1(x)=1/9x+2
f1(x)=9x+2
f1(x)=2x+1/9
2 Answers

Assuming: f(x) = (1/9)x – 2
y = (1/9)x – 2
9y = x – 18
x = 9y + 18
f^(1)(y) = 9y + 18
f^(1)(x) = 9x + 18

It is vital that questions be presented in the proper manner.
Brackets MUST be used.
Having to take a GUESS at :
y = f (x) = (1/9) x – 2
(1/9)x = y + 2
x = 9y + 18
g (y) = 9y + 18
g (x) = 9x + 18________inverse function.