The graph of $$\(y=a \cos (x+b)^{\circ}\)$$ for $$\(0 \leqslant x \leqslant 360\)$$ is drawn on the grid. (a) Find the value of $$\(a\)$$ and the value of $$\(b\)$$. $$\[ \begin{aligned} & a=. \\ & b=. \end{aligned} \]$$ (2) Another curve $$\(C\)$$ has equation $$\(y=\mathrm{f}(x)\)$$ The coordinates of the minimum point of $$\(C\)$$ are $$\((4,5)\)$$ (b) Write down the coordinates of the minimum point of the curve with equation (i) $$\(y=\mathrm{f}(2 x)\)$$ (ii) $$\(y=\mathrm{f}(x)-7\)$$ (2)

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