The problem gives a graph of a function $f(x)$. We need to evaluate $f(4)$ and solve $f(x) = 4$.

1. Problem Description

The problem gives a graph of a function $f(x)$. We need to evaluate $f(4)$ and solve $f(x) = 4$.

2. Solution Steps

First, let's find $f(4)$ using the graph. We look for the point on the graph where $x = 4$. From the graph, the corresponding $y$-value (or $f(4)$) is approximately $1$.

Next, we need to solve $f(x) = 4$. This means we need to find the $x$-value for which the $y$-value (or $f(x)$) is equal to $4$. Looking at the graph, we find that the $y$-value is $4$ when $x = -1$. Thus, $x = -1$.

3. Final Answer

$f(4) = 1$

$x = -1$