Question

directions: use this information to answer parts a and b.
$f(x)=x - 7$

part a
write the inverse of the function.
enter the correct expression in the box.
show hints
??$f^{-1}(x)$ -??

Explanation:

Step1: Replace $f(x)$ with $y$

$y = x - 7$

Step2: Swap $x$ and $y$

$x = y - 7$

Step3: Solve for $y$

$y = x + 7$

Step4: Replace $y$ with $f^{-1}(x)$

$f^{-1}(x) = x + 7$

Answer:

$f^{-1}(x) = x + 7$