Question

I need help on question 9 I would appreciate it:0

Answer 1

To determine the inverse function, first, we set the following equation:

$y=-10+8x\text{.}$

Now, we solve the above equation for x:

$\begin{gathered} y+10=8x, \\ \frac{y+10}{8}=x\text{.} \end{gathered}$

Exchanging x and y, we get:

$y=\frac{x+10}{8}\text{.}$

Finally, we substitute y by

$f^{-1}(x)$

and get:

$f^{-1}(x)=\frac{x+10}{8}\text{.}$

Answer:

$f^{-1}(x)=\frac{x+10}{8}\text{.}$