5.
\begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{235cd1dc-a3ab-473a-bf77-3e41b274dfd8-10_680_684_255_694}
\captionsetup{labelformat=empty}
\caption{Figure 1}
\end{figure}
Figure 1 shows part of the curve with equation \(y = 3 x ^ { 2 } - 2\)
The point \(P ( 2,10 )\) lies on the curve.
- Find the gradient of the tangent to the curve at \(P\).
The point \(Q\) with \(x\) coordinate \(2 + h\) also lies on the curve.
- Find the gradient of the line \(P Q\), giving your answer in terms of \(h\) in simplest form.
- Explain briefly the relationship between part (b) and the answer to part (a).