Higher June 2022 Paper 6 Q14
14 Sketch the graph of \(y = \cos x - 1\) for \(0^\circ \leqslant x \leqslant 720^\circ\).
[3]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
 | 3 | B1 for general shape of cosine curve | Starting at its max and completing at least one full cycle; condone incorrect period For full marks, it must be a curve and have correct curvature |
| B1 for max at \(y = 0\), minimum at \(y = -2\) | |||
| B1 for max at \(x = 360, 720\) | Only these two max between \(0 < x \leqslant 720\) | ||