\begin{frame}
  \frametitle{Functions: Examples}
  
  \begin{center}
  \scalebox{.7}{
  \begin{tikzpicture}[default]
    \diagram{-.5}{5.5}{-.5}{5.5}{1}
    \diagramannotatez
    \diagramannotatexx{1,2,3,4}
    \diagramannotateyy{1,2,3,4}
    \draw[cblue,ultra thick] plot[smooth,domain=1:4,samples=20] (\x,{2 + 2*\x - 1*(\x-1)^2});
  \end{tikzpicture}
  }
  \end{center}
  \vspace{-1ex}
  
  \begin{exampleblock}{}
    What is $f(3)$?
    \begin{itemize}
      \item $f(3) = \pause 4$
    \end{itemize}
    \pause
    What is the domain and range of this function?
    \begin{itemize}
      \item domain $= \pause \{x \mid 1 \le x \le 4\} = [1,4]$
      \item range $= \pause \{y \mid 1 \le x \le 5\} = [1,5]$
    \end{itemize}
  \end{exampleblock}
\end{frame}