1MA0 Higher November 2015 Paper 2 Q23

EdexcelHigherOld spec4 marksExact Trig & Graphs

23 Here is the graph of \(y = \sin x^\circ\) for \(-180 \leqslant x \leqslant 180\)

Graph of y = sin x for x from -180 to 180 on a grid with y from -4 to 4
(a) On the grid above, sketch the graph of \(y = \sin x^\circ + 2\) for \(-180 \leqslant x \leqslant 180\) (2)

Here is the graph of \(y = \cos x^\circ\) for \(-180 \leqslant x \leqslant 180\)

Graph of y = cos x for x from -180 to 180 on a grid with y from -4 to 4
(b) On the grid above, sketch the graph of \(y = -2\cos x^\circ\) for \(-180 \leqslant x \leqslant 180\) (2)