The vectors $\overrightarrow{u}$ and $\overrightarrow{v}$ are given, with
$\overrightarrow{u} = \begin{pmatrix}
-4 \\
2 \\
\end{pmatrix}$ and $\overrightarrow{v} = \begin{pmatrix}
1 \\
3 \\
\end{pmatrix}$.

\begin{enumerate}
    \item \nbPointsEnumi{3}Calculate $\overrightarrow{u} \cdot \overrightarrow{v}$.
    \item \nbPointsEnumi{3}Determine whether the vectors $\overrightarrow{u}$ and $\overrightarrow{v}$
    are parellel or not.
\end{enumerate}
