Question

find $f^{-1}(-8)$.\
\

$x$	$f(x)$	\
---	---	\
$-4$	$6$	\
$-8$	$7$	\
$1$	$-9$	\
$-11$	$15$	\
$15$	$-8$

Explanation:

Step1: Recall inverse function definition

The inverse function \( f^{-1}(y) \) gives the \( x \) such that \( f(x) = y \). So we need to find \( x \) where \( f(x) = -8 \).

Step2: Look at the table

Check the table for the row where \( f(x) = -8 \). From the table, when \( x = 15 \), \( f(x) = -8 \).

Answer:

15