8.
\begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{f953fd1c-447f-4e97-a42a-5264c053fda0-16_801_1049_255_555}
\captionsetup{labelformat=empty}
\caption{Figure 4}
\end{figure}
A circle with centre \(( 9 , - 6 )\) touches the \(x\)-axis as shown in Figure 4.
- Write down an equation for the circle.
A line \(l\) is parallel to the \(x\)-axis.
The line \(l\) cuts the circle at points \(P\) and \(Q\).
Given that the distance \(P Q\) is 8 - find the two possible equations for \(l\).