% !TeX TXS-program:compile = txs:///pdflatex

\documentclass[margin=5mm]{standalone}
\usepackage[nonpgfplots]{tkz-grapheur}

\begin{document}

\begin{GraphiqueTikz}[x=1cm,y=0.2cm,Xmin=0,Xmax=5.5,Xgrille=0.5,Ymin=-26,Ymax=1,Xgrilles=0.5,Ygrille=2,Ygrilles=2]
	\TracerAxesGrilles[Police=\small]{0.5,1,...,5}{-26,-24,...,0}
	\TracerCourbe[Couleur=purple]{(4*x-10)*exp(-x+1)}
	\draw[purple] (0.5,-20) node {$\mathcal{C}_1$} ;
\end{GraphiqueTikz}

\end{document}