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
