(a)[3]
The graph of $y=f(x)$ changes into the graph of $y=f(3x)+2$. Describe fully the two transformations that have been combined to produce the new graph.
(b)[2]
A graph has equation $y = g(x)$. It is stretched by scale factor $3$ in the $y$-direction and then reflected in the $y$-axis. Write down the equation of the transformed graph in terms of $g$.