Question

see the table below. what is $f(3)$? what is the value of $x$ for $f(x)=15$?
show your work here
$f(3) = $
when $f(x) = 15$, then $x = $

Explanation:

Step1: Locate $x=3$ in the table

Find the row where $x=3$, then read the corresponding $f(x)$ value.
From the table: when $x=3$, $f(x)=5$.

Step2: Locate $f(x)=15$ in the table

Find the row where $f(x)=15$, then read the corresponding $x$ value.
From the table: when $f(x)=15$, $x=8$.

Answer:

$f(3)=5$
When $f(x)=15$, then $x=8$