6-2-1.tex

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% 6-2-1.tex
\documentclass{article}
\begin{document}
\setlength{\unitlength}{1mm}
\begin{center}
\begin{picture}(60,30)
\linethickness{1pt}
\put(0,0){\vector(1,0){60}}
\put(0,0){\vector(0,1){30}}
\thicklines
\put(5,7){\line(5,2){50}}
\thinlines
\multiput(5,7)(3,0){15}{\line(1,0){2}}
\multiput(50,7.00)(0,3){6}{\line(0,1){2}}
\put(28,3){$\Delta x$}
\put(51,14){$\Delta y$}
\end{picture}
\end{center}
\end{document}