The impact of inflation on a $80,000 pension can be measured by the purchasing power P of $80,000 after t years. For an inflation rate of 5% per year, compounded annually, P is given by the following. P = 80,000e−0.0488t At what rate (in dollars per year) is purchasing power changing when  t = 12?  (Round your answer to the nearest cent.) $  per year

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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The impact of inflation on a $80,000 pension can be measured by the purchasing power P of $80,000 after t years. For an inflation rate of 5% per year, compounded annually, P is given by the following.
P = 80,000e−0.0488t
At what rate (in dollars per year) is purchasing power changing when 
t = 12?
 (Round your answer to the nearest cent.)
$  per year
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