\begin{frame} \frametitle{One-To-One Functions: Examples} \begin{exampleblock}{} Which of the following functions is one-to-one? \begin{itemize} \pause\medskip \item $x^3$\quad?\quad \pause Yes \pause\medskip \item $x^2$\quad?\quad \pause No \pause\medskip \item $4^x$\quad?\quad \pause Yes \pause\medskip \item $x - x^3$\quad?\quad \pause No \pause\medskip \item $x + 4^x$\quad?\quad \pause Yes \pause\medskip \item $-x - x^3$\quad?\quad \pause Yes \medskip \end{itemize} \end{exampleblock} \end{frame}