The sketch shows the graph of \(y = \sin ^ { - 1 } x\).
\includegraphics[max width=\textwidth, alt={}, center]{908f530c-076d-47b1-90dd-38dbfe44f898-05_835_834_447_587}
Write down the coordinates of the points \(P\) and \(Q\), the end-points of the graph.
Sketch the graph of \(y = - \sin ^ { - 1 } ( x - 1 )\).