June 2024 Paper 1 Q4
4 One of the diagrams below shows the graph of \(y = \arccos x\)
Identify the graph of \(y = \arccos x\)
Tick (✓) one box. [1 mark]

| Scheme | Marks | AO |
|---|---|---|
| Ticks the bottom-right box | B1 | 1.2 |
| (1 mark) |
Typical solution
The bottom-right graph: a decreasing curve through \(\left(0, \dfrac{\pi}{2}\right)\) ending at \((1, 0)\) on the \(x\)-axis.