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?

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Answer 1 · 2018-02-11T13:26:43

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

Over a period of $8$ $8$ years, the profit increased by $$ 28000$ $$28000$ .

This looks like a slope question:

The average rate of change is equal to $(Deltay)/(Deltax)$ , where $y$ is the profit and $x$ the time.

So we may input:

$(68000-40000)/(2007-1999)$

$28000/8$

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