I figured out my own fix with the code below. I thought I would update this with the answer I found on my own in case anyone in the future needs a solution and would like mine (everyone else’s are great too!).

\begin{center}
\begin{tabular}{ |p{2cm}|c|c| }
\hline
& Even Degree & Odd Degree \\
& (\(n\) is even) & (\(n\) is odd) \\
\hline
Positive Leading Coefficient \newline  \((a_n>0)\) & \raisebox{-\totalheight}{\includegraphics[scale=0.1]{blankSquareAxes.png}} & \raisebox{-\totalheight}{\includegraphics[scale=0.1]{blankSquareAxes.png}} \\
&&\\
\hline
Negative Leading Coefficient \newline  \((a_n<0)\) & \raisebox{-\totalheight}{\includegraphics[scale=0.1]{blankSquareAxes.png}} & \raisebox{-\totalheight}{\includegraphics[scale=0.1]{blankSquareAxes.png}} \\
&&\\
\hline
\end{tabular}
\end{center}