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Mathematical Applications for the ...

11th Edition
Ronald J. Harshbarger + 1 other
ISBN: 9781305108042

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Chapter
Section
BuyFindarrow_forward

Mathematical Applications for the ...

11th Edition
Ronald J. Harshbarger + 1 other
ISBN: 9781305108042
Textbook Problem

Prices for goods and services tend to rise over time, and this results in the erosion of purchasing power. With the 2012 dollar as a reference, a purchasing power of 0.921 for a certain year means that in that year, a dollar will purchase 92.1% of the goods and services that could be purchased for $1 in 2012. Using Social Security Administration data for selected years from 2012 and projected to 2050, the purchasing power of a 2012 dollar can be modeled by the function

P ( t ) =   1.078 ( 0.9732 t ) where t is the number of years past 2010.

(a) Find the function that models the rate of change of the purchasing power of a 2012 dollar.

(b) Find and interpret P ( 18 )  and  P ' ( 18 ) .

(a)

To determine

To calculate: The rate of change of the purchasing power of a 2012 dollar. If the purchasing power of a 2012 dollar can be modeled by the function P(t)=1.078(0.9732t). Where t is the number of years past 2010.

Explanation

Given Information:

The purchasing power of a 2012 dollar can be modeled by the function as;

P(t)=1.078(0.9732t)

Where t is the number of years past 2010.

Formula used:

The derivative of function f(x)=e(ax+b) is given by;

f(x)=e(ax+b)(a)

The derivative of function f(x)=xn is given by;

f(x)=nxn1

If y=ax, with a>0, a1, then;

dydx=axlna

Calculation:

The rate of change of the purchasing power of a 2012 dollar is given by the derivative as;

P(t)=ddt[1.078(0

(b)

To determine

To calculate: The P(18), P(18) and interpret if the purchasing power of a 2012 dollar can be modeled by the function P(t)=1.078(0.9732t). Where t is the number of years past 2010.

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Chapter 11 Solutions

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Sect-11.1 P-7ESect-11.1 P-8ESect-11.1 P-9ESect-11.1 P-10ESect-11.1 P-11ESect-11.1 P-12ESect-11.1 P-13ESect-11.1 P-14ESect-11.1 P-15ESect-11.1 P-16ESect-11.1 P-17ESect-11.1 P-18ESect-11.1 P-19ESect-11.1 P-20ESect-11.1 P-21ESect-11.1 P-22ESect-11.1 P-23ESect-11.1 P-24ESect-11.1 P-25ESect-11.1 P-26ESect-11.1 P-27ESect-11.1 P-28ESect-11.1 P-29ESect-11.1 P-30ESect-11.1 P-31ESect-11.1 P-32ESect-11.1 P-33ESect-11.1 P-34ESect-11.1 P-35ESect-11.1 P-36ESect-11.1 P-37ESect-11.1 P-38ESect-11.1 P-39ESect-11.1 P-40ESect-11.1 P-41ESect-11.1 P-42ESect-11.1 P-43ESect-11.1 P-44ESect-11.1 P-45ESect-11.1 P-46ESect-11.1 P-47ESect-11.1 P-48ESect-11.1 P-49ESect-11.1 P-50ESect-11.1 P-51ESect-11.1 P-52ESect-11.2 P-1CPSect-11.2 P-2CPSect-11.2 P-3CPSect-11.2 P-4CPSect-11.2 P-1ESect-11.2 P-2ESect-11.2 P-3ESect-11.2 P-4ESect-11.2 P-5ESect-11.2 P-6ESect-11.2 P-7ESect-11.2 P-8ESect-11.2 P-9ESect-11.2 P-10ESect-11.2 P-11ESect-11.2 P-12ESect-11.2 P-13ESect-11.2 P-14ESect-11.2 P-15ESect-11.2 P-16ESect-11.2 P-17ESect-11.2 P-18ESect-11.2 P-19ESect-11.2 P-20ESect-11.2 P-21ESect-11.2 P-22ESect-11.2 P-23ESect-11.2 P-24ESect-11.2 P-25ESect-11.2 P-26ESect-11.2 P-27ESect-11.2 P-28ESect-11.2 P-29ESect-11.2 P-30ESect-11.2 P-31ESect-11.2 P-32ESect-11.2 P-33ESect-11.2 P-34ESect-11.2 P-35ESect-11.2 P-36ESect-11.2 P-37ESect-11.2 P-38ESect-11.2 P-39ESect-11.2 P-40ESect-11.2 P-41ESect-11.2 P-42ESect-11.2 P-43ESect-11.2 P-44ESect-11.2 P-45ESect-11.2 P-46ESect-11.2 P-47ESect-11.2 P-48ESect-11.2 P-49ESect-11.2 P-50ESect-11.2 P-51ESect-11.2 P-52ESect-11.2 P-55ESect-11.2 P-56ESect-11.2 P-58ESect-11.2 P-59ESect-11.2 P-60ESect-11.2 P-61ESect-11.2 P-62ESect-11.2 P-66ESect-11.3 P-1CPSect-11.3 P-2CPSect-11.3 P-1ESect-11.3 P-2ESect-11.3 P-3ESect-11.3 P-4ESect-11.3 P-5ESect-11.3 P-6ESect-11.3 P-7ESect-11.3 P-8ESect-11.3 P-9ESect-11.3 P-10ESect-11.3 P-11ESect-11.3 P-12ESect-11.3 P-13ESect-11.3 P-14ESect-11.3 P-15ESect-11.3 P-16ESect-11.3 P-17ESect-11.3 P-18ESect-11.3 P-19ESect-11.3 P-20ESect-11.3 P-21ESect-11.3 P-22ESect-11.3 P-23ESect-11.3 P-24ESect-11.3 P-25ESect-11.3 P-26ESect-11.3 P-27ESect-11.3 P-28ESect-11.3 P-29ESect-11.3 P-30ESect-11.3 P-31ESect-11.3 P-32ESect-11.3 P-33ESect-11.3 P-34ESect-11.3 P-35ESect-11.3 P-36ESect-11.3 P-37ESect-11.3 P-38ESect-11.3 P-39ESect-11.3 P-40ESect-11.3 P-41ESect-11.3 P-42ESect-11.3 P-43ESect-11.3 P-44ESect-11.3 P-45ESect-11.3 P-46ESect-11.3 P-47ESect-11.3 P-48ESect-11.3 P-49ESect-11.3 P-50ESect-11.3 P-51ESect-11.3 P-52ESect-11.3 P-53ESect-11.3 P-54ESect-11.3 P-55ESect-11.3 P-56ESect-11.3 P-57ESect-11.3 P-58ESect-11.3 P-59ESect-11.3 P-60ESect-11.3 P-61ESect-11.3 P-62ESect-11.3 P-63ESect-11.4 P-1CPSect-11.4 P-2CPSect-11.4 P-3CPSect-11.4 P-1ESect-11.4 P-2ESect-11.4 P-3ESect-11.4 P-4ESect-11.4 P-5ESect-11.4 P-6ESect-11.4 P-7ESect-11.4 P-8ESect-11.4 P-9ESect-11.4 P-10ESect-11.4 P-11ESect-11.4 P-12ESect-11.4 P-13ESect-11.4 P-14ESect-11.4 P-15ESect-11.4 P-16ESect-11.4 P-17ESect-11.4 P-18ESect-11.4 P-19ESect-11.4 P-20ESect-11.4 P-21ESect-11.4 P-22ESect-11.4 P-23ESect-11.4 P-24ESect-11.4 P-25ESect-11.4 P-26ESect-11.4 P-27ESect-11.4 P-28ESect-11.4 P-29ESect-11.4 P-30ESect-11.4 P-31ESect-11.4 P-32ESect-11.4 P-33ESect-11.4 P-34ESect-11.4 P-35ESect-11.4 P-36ESect-11.4 P-37ESect-11.4 P-38ESect-11.4 P-39ESect-11.5 P-1CPSect-11.5 P-2CPSect-11.5 P-3CPSect-11.5 P-4CPSect-11.5 P-1ESect-11.5 P-2ESect-11.5 P-3ESect-11.5 P-4ESect-11.5 P-5ESect-11.5 P-6ESect-11.5 P-7ESect-11.5 P-8ESect-11.5 P-9ESect-11.5 P-10ESect-11.5 P-11ESect-11.5 P-12ESect-11.5 P-15ESect-11.5 P-16ESect-11.5 P-17ESect-11.5 P-18ESect-11.5 P-19ESect-11.5 P-20ESect-11.5 P-21ESect-11.5 P-22ESect-11.5 P-23ESect-11.5 P-24ECh-11 P-1RECh-11 P-2RECh-11 P-3RECh-11 P-4RECh-11 P-5RECh-11 P-6RECh-11 P-7RECh-11 P-8RECh-11 P-9RECh-11 P-10RECh-11 P-11RECh-11 P-12RECh-11 P-13RECh-11 P-14RECh-11 P-15RECh-11 P-16RECh-11 P-17RECh-11 P-18RECh-11 P-19RECh-11 P-20RECh-11 P-21RECh-11 P-22RECh-11 P-23RECh-11 P-24RECh-11 P-25RECh-11 P-26RECh-11 P-27RECh-11 P-28RECh-11 P-29RECh-11 P-30RECh-11 P-31RECh-11 P-32RECh-11 P-33RECh-11 P-34RECh-11 P-38RECh-11 P-39RECh-11 P-40RECh-11 P-41RECh-11 P-35RECh-11 P-36RECh-11 P-37RECh-11 P-1TCh-11 P-2TCh-11 P-3TCh-11 P-4TCh-11 P-5TCh-11 P-6TCh-11 P-7TCh-11 P-8TCh-11 P-9TCh-11 P-10TCh-11 P-11TCh-11 P-12TCh-11 P-13TCh-11 P-14TCh-11 P-15TCh-11 P-16TCh-11 P-17TCh-11 P-19T

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