(a)[1]
Use the graph to determine the value of $x$ when $y = 4$.
(b(i))[1]
Show that the value of $k$ is $8$.
(b(ii))[1]
Calculate the value of $y$ when $x = 250$.
(c(i))[2]
Complete the table of values.
(c(ii))[3]
On the grid, sketch the graph of $y = \frac{8}{x}$ for $-8 \le x \le -1$.
(d)[2]
State the equation of each line of symmetry of the graph.