(a) Copy and complete the following table of values for $y=9\cos x+5\sin x$ to one decimal place.

x	0°	30°	60°	90°	120°	150°	180°	210°
y		10.3			-0.2	-5.3		-10.3

(b) Using a scale of 2cm to 30° on the x- axis and 2 cm to 1 unit on the y- axis, draw the graph of $y=9\cos x+5\sin x$ for $0°\le x\le 210°$.
(c) Use your graph to solve the equation: (i) $9\cos x+5\sin x=0$; (ii) $9\cos x+5\sin x=3.5$, correct to the nearest degree.
(d) Find the maximum value of y correct to one decimal place.



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