\input{preamble-standalone.ltx}
\begin{document}

% Ex. No. 80 (Section  9.2 : Use \tkzcname{tikzset})

\begin{tikzpicture}
  \tkzInit[xmin=-0.5,xmax=5]
  \tkzDrawX
  \tkzLabelX
\end{tikzpicture}

\end{document}