1MA0 Higher June 2013 Paper 1 Q28
28 The diagram shows a sketch of the graph of \(y = \cos x^\circ\)
(a) Write down the coordinates of the point \(A\). (1)
(b) On the same diagram, draw a sketch of the graph of \(y = 2\cos x^\circ\) (1)
| Answer | Mark | Notes |
|---|---|---|
| (90, 0) | 1 | B1 for (90, 0) (condone \(\left(\frac{\pi}{2}, 0\right)\)) |
| Answer | Mark | Notes |
|---|---|---|
| Correct graph | 1 | B1 for graph through (0, 2) (90, 0) \((180, -2)\) (270, 0) (360, 2) professional judgement |