what equation is this f(x)=\begin{cases}
2, & \text{if } -5 \leq x \leq 5 \\
0, & \text{otherwise}
\end{cases}

g(x)=\begin{cases}
x, & \text{if } -5 \leq x \leq 0 \\
-x, & \text{if } 0 < x \leq 5 \\
\end{cases}

h(x)=\begin{cases}
-2x, & \text{if } -5 \leq x \leq 0 \\
2x, & \text{if } 0 < x \leq 5 \\
\end{cases}

i(x)=\begin{cases}
-3, & \text{if } -5 \leq x \leq 0 \\
3, & \text{if } 0 < x \leq 5 \\
\end{cases}

j(x)=\begin{cases}
4, & \text{if } -5 \leq x \leq 5 \\
0, & \text{otherwise}
\end{cases}