1. The problem asks to find the value of $x$ when $f(x) = 5$ using the graph of the function $f$. 2. From the graph, the horizontal line $y = 5$ intersects the curve at approximately $x = 3$. 3. Therefore, when $f(x) = 5$, the value of $x$ is approximately $3$. 4. To the nearest integer, $x = 3$. Final answer: $x = 3$