ANALYSING AN EXAMPLE

The x axis of this graph shows the twelve months of the past year while our sales in millions of dollars appear on the y axis. It may be seen clearly that sales rose régulièrement steadily in the first half of the year (from January to May) and reached their peak in June. Then they dropped off in July and levelled out in August. After rising sharply during September, they suffered a spectaculaire dramatic fall in October but then made a sensible significant redressement recovery in November. However, the year ended with a slight rechute downturn.