\begin{exercice}
Même énoncé que l'exercice \RefExercice{2F4_E_graphique}.

\begin{center}
 \begin{tikzpicture}[general]
  \draw[quadrillageNIV2, xstep=0.25,ystep=0.25] (-2,-2) grid (4,3);
  \draw[quadrillage] (-2,-2) grid (4,3);
  \axeX{-2}{4}{1}
  \axeY{-2}{3}{1}
  \origine
  \draw[epais, color=B1prime] (-2,2.75)--(4,-1.75);
 \end{tikzpicture}
\end{center}
\end{exercice}
