\begin{exercice}Pour chacune des suites représentées ci-dessous, dire si elle semble converger ou diverger.
\begin{enumerate}
  \item ~~

  \vspace{-\baselineskip}\begin{tikzpicture}[general,xscale=.6,yscale=0.5]
  \draw[quadrillageNIV2, xstep=1, ystep=1](0,-2) grid(10,2);

\axeX{0}{10}{1,2,3,4,5,6,7,8,9,10};
\axeY{-2}{2}{-2,-1,0,1,2};


\draw [color=C1]  (0,1.5) node {$\bullet$};
\draw [color=C1]  (1,-1.5) node {$\bullet$};
\draw [color=C1]  (2,1.5) node {$\bullet$};
\draw [color=C1] (3,-1.5) node {$\bullet$};
\draw [color=C1] (4,1.5) node {$\bullet$};
\draw [color=C1] (5,-1.5) node {$\bullet$};
\draw [color=C1] (6,1.5) node {$\bullet$};
\draw [color=C1] (7,-1.5) node {$\bullet$};
\draw [color=C1] (8,1.5) node {$\bullet$};
\draw [color=C1] (9,-1.5) node {$\bullet$};
\draw [color=C1] (10,1.5) node {$\bullet$};
    \end{tikzpicture}
  \item ~~

  \vspace{-\baselineskip}\begin{tikzpicture}[general,xscale=.6,yscale=0.5]
  \draw[quadrillageNIV2, xstep=1, ystep=1](0,-3) grid(10,3);

\axeX{0}{10}{0,1,2,3,4,5,6,7,8,9,10};
\axeY{-3}{3}{-3,-2,-1,0,1,2,3};
\draw [color=C1]  (0,-3) node {$\bullet$};
\draw [color=C1]  (1,2.75) node {$\bullet$};
\draw [color=C1]  (2,-1.75) node {$\bullet$};
\draw [color=C1]  (3,1.5) node {$\bullet$};
\draw [color=C1] (4,-1.2) node {$\bullet$};
\draw [color=C1] (5,1) node {$\bullet$};
\draw [color=C1] (6,-0.7) node {$\bullet$};
\draw [color=C1] (7,0.75) node {$\bullet$};
\draw [color=C1] (8,-0.5) node {$\bullet$};
\draw [color=C1] (9,0.3) node {$\bullet$};
\draw [color=C1] (10,-0.2) node {$\bullet$};
    \end{tikzpicture}
  \item ~~

  \vspace{-\baselineskip}\begin{tikzpicture}[general,xscale=.75,yscale=0.05]
  \draw[quadrillageNIV2, xstep=1, ystep=10](0,-60) grid(7,0);

\axeX{0}{7}{1,2,3,4,5,6,7};
\axeY{-60}{0}{-60,-50,-40,-30,-20,-10,0};


\draw [color=C1]  (1,0) node {$\bullet$};
\draw [color=C1]  (2,-5) node {$\bullet$};
\draw [color=C1]  (3,-12) node {$\bullet$};
\draw [color=C1] (4,-21) node {$\bullet$};
\draw [color=C1] (5,-32) node {$\bullet$};
\draw [color=C1] (6,-45) node {$\bullet$};
\draw [color=C1] (7,-60) node {$\bullet$};
    \end{tikzpicture}
\end{enumerate}
\end{exercice}

