Question

Can anyone help me please

Answer 1

To find
`f^(-1) (x)`, you can switch the x and the y(which is f(x)).

So instead of
`f(x)=(-7)/(4x-5)`, it will be:

`x = (-7)/(4y-5)`

Now you need to find "y".

You first multiply (4y - 5) on both sides

`x(4y - 5) = -7`

Next divide "x" on both sides

`4y - 5 = (-7)/(x)`

Add 5 on both sides

`4y = (-7)/(x) +5`

Divide 4 on both sides to get "y" by itself

`y = (7)/(4x) +(5)/(4)`

`f^(-1) = (7)/(4x) +(5 )/(4)`