Question

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

f-1(x) = 9x + 18
f-1(x) = 5x+2
f-1(x) = 9x+2
f-1(x) = -2x +

Answer 1

a)

on edg 2020

Explanation:

edgen

Answer 2

For this case we must find the inverse of the following function:

`f (x) = \frac {1} {9} x-2`

To do this, we follow the steps below:

We change
`f (x)`by y:

`y = \frac {1} {9} x-2`

We exchange the variables:

`x = \frac {1} {9} y-2`

We clear the variable "y":

`x + 2 = \frac {1}{9} y\\9 (x + 2) =y\\y = 9 (x + 2)\\y = 9x + 18`

Finally, we change "y" to
`f^(-1)(x):`

`f^(-1)(x) = 9x + 18`

ANswer:

The inverse of the given function is:
`f^(-1)(x) = 9x + 18`