184 

   184 

   185 \begin{frame}[fragile]

   185 \begin{frame}[fragile]

   186 \begin{figure}

   186 \begin{figure}

   187 \includegraphics[width=3.5in]{data/straightline.png}

   187 \includegraphics[width=3.5in]{data/straightline.png}

   188 \end{figure}

   188 \end{figure}

   189 \end{frame}

   190 \end{frame}

   190 

   191 

   191 \begin{frame}[fragile]

   192 \begin{frame}[fragile]

   192 \frametitle{Plotting points}

   193 \frametitle{Plotting points}

   193 \begin{itemize}

   194 \begin{itemize}