(x) = ![\frac{x+8}{9}](/tpl/images/0422/1820/046df.png)
Step-by-step explanation:
f(x) = 9x - 8 , to find the inverse of f(x) , replace f(x) with y , then the equation becomes
y = 9x - 8 , then make x , the subject of the formula ,
9x = y + 8
x = ![\frac{y+8}{9}](/tpl/images/0422/1820/8ce42.png)
Finally , replace x , with
(x) and y with x , so we have
(x) = ![\frac{x+8}{9}](/tpl/images/0422/1820/046df.png)