# In 1999, a hot dog company had a profit of $40,000. In 2007, the same company had a total profit of$68,000. What is the average rate of change of the company's profit in dollars per year?

Feb 11, 2018

$3500 per year is the change in company profit. #### Explanation: Over a period of $8$years, the profit increased by $28000.

This looks like a slope question:

The average rate of change is equal to $\frac{\Delta y}{\Delta x}$, where $y$ is the profit and $x$ the time.

So we may input:

$\frac{68000 - 40000}{2007 - 1999}$

$\frac{28000}{8}$

\$3500 per year is the change in company profit.