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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
18 Nov 2021

Given information

The table that gives total value of US currency (coins and bank notes) in circulation at time is provided below.

t 1980 1985 1990 1995 2000
129.9 187.3 271.9 409.3 568.6

Step-by-step explanation

Step 1.

Apply the concept of average rate of change

The average rate of change of y (dependent variable) with respect to x (independent variable) is provided below.

Let x varies from to then change in x is denoted as  .

And corresponding change in y is denoted as   

The average rate of change is expressed as:

 

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