Question

If f(x) = 1/9 x - 2, what is f-1 (x)

Answer 1

`f(x) = (1)/(9) x - 2 \\`

`f( - 1) = (1)/(9) ( - 1) - 2 \\`

`f( - 1) = - (1)/(9) - 2 \\`

`f( - 1) = - (1)/(9) - (18)/(9) \\`

`f( - 1) = - (19)/(9) \\`