Deciphering the Graph: Identifying Horizontal Line and Key Point at (994, 431)

First, we identify the absolute value function associated with the V-shaped graph. The vertex of this V-shape is at the point $(-6, 0)$, indicating an expression of $f(x) = |x + 6|$.

Next, observe the red horizontal line, which consistently passes through $y = 3$. This confirms that the horizontal line function is $g(x) = 3$.

Having identified both functions, we conclude that they correspond to:

$\begin{cases} f(x)= |x+6| \\ g(x)=3 \end{cases}$