Consider the graph of the function $f$ shown below.
The line $r$ is a tangent line to the graph of $f$ at point A.

\begin{center}
\includegraphics[width=2.66841in,height=3.24583in]{S6P3/2021_December/2021_12_S6P3_VAR_NL_BTest_ExoA3_IMG1.jpg}
\end{center}

\begin{enumerate}
    \item \nbPointsEnumi{4}Use the information in the diagram to find the equation of the line $r$.

    \item \nbPointsEnumi{4}Given that $f(x) = x^{3} - 3x^{2} + 2x + 1$, use the diagram or otherwise to
find the value of $f'(0)$.
\end{enumerate}
