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

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

\begin{document}

\begin{GraphiqueTikz}[x=0.5cm,y=0.5cm,Xmin=-4.5,Xmax=3.75,Ymin=0,Ymax=10]
	\fill[blue!5] (0,0) rectangle (3,3) ;
	\TracerAxesGrilles[Grille=false,Derriere]{}{}
	\DefinirCourbe[Nom=cf]< f >{x^2}
	\TracerIntegrale[Couleurs=darkgray/gray,Style=hachures]{f(x)}{0}{3}
	\TracerCourbe[Couleur=red]{f(x)}
	\TracerAxesGrilles[Grille=false,Devant,Police=\footnotesize]{-4,-3,...,3}{1,2,...,9}
	\draw[pflcourbe,blue] (0,0) rectangle (3,3) ;
	\draw (0,0) node[blue,inner sep=1pt,below left,font=\footnotesize] {$A$} ;
	\draw (3,0) node[blue,inner sep=1pt,below right,font=\footnotesize] {$B$} ;
	\draw (3,3) node[blue,inner sep=1pt,above right,font=\footnotesize] {$C$} ;
	\draw (0,3) node[blue,inner sep=1pt,above left,font=\footnotesize] {$D$} ;
\end{GraphiqueTikz}

\end{document}