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what was the average rate of change of annual sales between 2001 and 2002? And between 2001 and 2004?

what was the average rate of change of annual sales between 2001 and 2002? And between-example-1

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1. The average rate of change between 2001 and 2002 :

Ave rate =( y2-y1)/(x2-x1 ) = (250-241)/(2002-2001) = 9/1 = 9 million dollars

2.The average rate of change between 2001 and 2004 :

Ave rate =( y2-y1)/(x2-x1 ) =( 243 -241)/(2004-2001) = 2 /3 = 0.667 million dollars

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