Copy and complete the table of values for y = 3 cos x, 30° <= x <= 330°. Using a scale of 2 cm to 30° on the x-axis and 2 cm to 1 unit on the y-axis, draw the graph of y = 3 cos x for 30° <= x <= 330°. Use the graph to: (i) solve 3 cos x = 0; (ii) find the minimum point.

This equation is equivalent to $y = 0$ on the graph of $y = 3 \cos x$. We need to find the values of $x$ where the graph intersects the x-axis.

From the table of values (or by looking at the graph you would draw), $y = 0$ when $x = 90^\circ$ and $x = 270^\circ$.
The solutions for $3 \cos x = 0$ are $\boxed{x = 90^\circ \text{ and } x = 270^\circ}$.

The cosine function $y = \cos x$ has a minimum value of $-1$. For $y = 3 \cos x$, the minimum value will be $3 \times (-1) = -3$.
This minimum occurs when $\cos x = -1$, which happens at $x = 180^\circ$ within the given range.
From the table, at $x = 180^\circ$, $y = -3.0$. This is the lowest point on the graph.
The minimum point is $\boxed{(180^\circ, -3.0)}$.