SOLUTION: The number of visits to public libraries increased from 1.2 million in 1999 to 1.4 billion in 2004. Find the average rate of change in number of public libraries visits from 1999 t

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Question 987001: The number of visits to public libraries increased from 1.2 million in 1999 to 1.4 billion in 2004. Find the average rate of change in number of public libraries visits from 1999 to 2004.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Plot the number of visits on the vertical axis
Plot the date in years on the horizontal axis
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Average rate of change = { change in number of vists in billions ] / [ years passed ]
+%28+1.4+-+1.2+%29+%2F+%28+2004+-+1999+%29+
+.2+%2F+5+=+.4+%2F+10+
+.4+%2F+10+=+.04+
+.04%2A10%5E9+=+40%2A10%5E6+
-------------------------
The average rate of change is
40 million visits / year