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| PAGE: 42 | SET: Exercises | PROBLEM: 51 |
The function is 
,
, where 
is the number of years since 
.
The values in the graph corresponding years.
(a) Graph the equation.
, 
.
(b) Find the average rate of change from 
to 
.
Observe the graph:
Average rate of change of 
on the interval 
.
Average rate of change from to was about 
.
This value represents the average change in net personal income in the U.S. from to .
(c) Find the period was the average rate of change highest:
The highest average rate of change will occur at the steepest point of the graph.
Locate the steepest points on the graph.
Average rate of change of 
on the interval 
.
This value represents the average change in net personal income in the U.S. from 
to .
Average rate of change from 
to was about 
.
Find the period was the average rate of change lowest:
the lowest average rate of change will occur at the flattest point of the graph.
Locate the steepest points on the graph.
Average rate of change of on the interval 
.
This value represents the average change in net personal income in the U.S. from 
to 
.
Average rate of change from to was about 
.
(a) Graph of the equation.
, .
(b) Average rate of change from to was about .
This value represents the average change in net personal income in the U.S. from to .
(c) The rate of change was highest from to at about 
and lowest from to at about 
.
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