(a)[3]
Fill in the table.
(b)[4]
On the grid, draw the curve of $y=\frac{3}{10}x^3-2x$ for $-3 \le x \le 3$.
(c)[4]
On the grid opposite, draw an appropriate straight line to solve the equation $\frac{3}{10}x^3-2x=\frac{1}{2}(1-x)$ for $-3 \le x \le 3$.
(d)[1]
For $-3 \le x \le 3$, the equation $\frac{3}{10}x^3-2x=1$ has $n$ solutions. Write down the value of $n$.