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# per year is the change in company profit.

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 #(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.