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\begin{frame}
  \frametitle{Maximum and Minimum Values}
  
  \vspace{-1ex}
  \begin{exampleblock}{}
    \begin{minipage}{.45\textwidth}
    The graph of
    \begin{talign}
      f(x) = \frac{3x^4 - 16x^3 + 18x^2}{15}
    \end{talign}
    for $-1 \le x \le 4$
    is shown in this diagram:
    \end{minipage}
    \begin{minipage}{.54\textwidth}
    \begin{center}
    \scalebox{.7}{
    \begin{tikzpicture}[default,baseline=1cm]
      \diagram{-2}{5}{-2}{3}{1}
      \diagramannotatey{-1,1,2}
      \diagramannotatex{-1,1,2,3,4}
      \diagramannotatez
      \begin{scope}[cgreen,ultra thick]
        \draw plot[smooth,domain=-1:4,samples=200] function{(3*x**4 - 16*x**3 + 18*x**2)/15};
      \end{scope}
      \node[cred,include] (a) at (-1,37/15) {};
      \node[cred] (b) at ($(a)+(0,.4)$) {1};
      \node[cred,include] (a) at (0,0) {};
      \node[cred] (b) at ($(a)+(0.15,.4)$) {2};
      \node[cred,include] (a) at (1,5/15) {};
      \node[cred] (b) at ($(a)+(0,.4)$) {3};
      \node[cred,include] (a) at (3,-27/15) {};
      \node[cred] (b) at ($(a)+(0,.4)$) {4};
      \node[cred,include] (a) at (4,32/15) {};
      \node[cred] (b) at ($(a)+(0,.4)$) {5};
    \end{tikzpicture}
    }
    \end{center}
    \end{minipage}
    \pause\smallskip
    
    Which of the points are a local / global maxima or minima?
    \begin{enumerate}
    \pause
      \item \noindent\pause global (absolute) maximum;\\
            \pause not a local maximum since $f$ is not defined near $-1$
    \pause
      \item \noindent\pause local minimum 
    \pause
      \item \noindent\pause local maximum 
    \pause
      \item \noindent\pause global (absolute) and local minimum
    \pause
      \item \noindent\pause nothing
    \end{enumerate}
  \end{exampleblock}
\end{frame}