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An economy's consumer price index (CPI) is described by the function I ( t ) = -0.2 t 3+ 3 t 2+ 100(0 t 10)
An economy's consumer price index (CPI) is described by the function
I(t) = -0.2t3+ 3t2+ 100(0 t 10)
wheret= 0corresponds to2001.The units of the function are in points or pts.
- What was the average rate of increase in CPI over the period from 2001 to 2006?
- What is the derivative?
- At what rate was the CPI changing in 2005? In 2009? In 2011?
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Understanding Analysis
Authors: Stephen Abbott
2nd Edition
1493927124, 9781493927128
