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

% Ex. No. 63 (Section  8.7.2 : label et référence)

 \begin{tikzpicture}
    \tkzInit[xmax=1,xstep=0.15,ymax=.5]
    \tkzAxeX \tkzDrawY[noticks]
    \tkzDefPoint(0.22,0.25){A}
    \tkzDrawPoint(A)
    \tkzLabelPoint[above](A){$A_1$}
\end{tikzpicture}

\end{document}
