The graph shows the conversion between Country A and Country B's currency.
Use the graph to convert $8$8 of currency A to currency B.
Use the graph to convert $2$2 of currency B to currency A.
The graph shows the relationship between the cost of petrol for a car and distance travelled.
Edward walks from his home to school on occasion. The graph represents his distance from school over one particular journey.
The graph shows the amont of money Iain earns from his job as a librarian, given the number of hours he worked that week.