For each relation, decide whether or not it is a function.
\begin{tabular}{|c|c|}
\hline Relation 1 & Relation 2 \\
\hline \begin{tabular}{l}
Domain \\
Range \\
Function \\
Not a function
\end{tabular} & \begin{tabular}{l}
Function \\
Not a function
\end{tabular} \\
\hline \begin{tabular}{l}
Relation 3 \\
\( \{(w, d),(w, j),(w, w),(w, e)\} \) \\
Function \\
Not a function
\end{tabular} & \begin{tabular}{l}
Relation 4 \\
\( \{(-7, s),(7, b),(-8, w),(3, c)\} \) \\
Function \\
Not a function
\end{tabular} \\
\hline
\end{tabular}
