The graph shown is that of the absolute value function, represented by:

$y = |x|$

Explanation:

1. The absolute value function creates a "V" shape centered at the origin $(0, 0)$.
2. The graph is symmetric with respect to the y-axis, which means for every positive value $x$, the function returns the same result as for $-x$.
3. The two arms of the graph have slopes of $1$ and $-1$, indicating that:
   • On the right side (when $x \geq 0$), the slope is $1$.
   • On the left side (when $x < 0$), the slope is $-1$.

In general, the absolute value function can be written piecewise as: