Question

A car manufacture sales figure for 2000 to 2008 are shown in the table estimate the average rate of change in the number of cars the manufacturer sold between 2002 and 2006

Answer 1

The estimated rate of change is given by

$\frac{y2-y1}{x2-x1}=\frac{60-51}{4}=\frac{9}{4}=2.25\text{ hundreds}$

Answer: 225 cars by year.