Question

What is the inverse of the function f(x)=1/9x+2

Answer 1

Inverse works in this way:

y = 1/9x + 2,

you should swap the places of x and y and find y again, in this case it will be

x = 1/9y + 2 => x-2 = 1/9y => (x-2) * 9y = 1 => 9y = 1/(x-2)

and finally we got y =
`(1)/((x-2)*9)`