4 Fig. 4 shows a sketch of the graph of \(y = 2 | x - 1 |\). It meets the \(x\) - and \(y\)-axes at ( \(a , 0\) ) and ( \(0 , b\) ) respectively.
\begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{1167a0e5-48c8-48e0-b2d1-76a50bad03ad-2_478_556_1247_792}
\captionsetup{labelformat=empty}
\caption{Fig. 4}
\end{figure}
Find the values of \(a\) and \(b\).