### Home > INT2 > Chapter 10 > Lesson 10.2.2 > Problem10-70

10-70.

For the function $f(x) = 7x - 2$: Homework Help ✎

For additional help, see problems 11-20 and 11-29

1. Write an equation for the inverse function.

Write down the steps for the function.
Reverse the order.
Write the new steps using algebra and inverse notation.

$\textit{f}^{-1}(\textit{x})= \frac{\textit{x}+2}{7}$

2. Show that your inverse function is correct. Choose an input number for the function and put the output number into the inverse. Is your final output the same as your original input?