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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
28 Oct 2021

Given information

Given:-

To find:- Estimate the rate of population growth in 1920 and in 1980 by averaging the slopes of two secant lines.

Step-by-step explanation

Step 1.

Estimate the rate of population growth in 1920 by finding the slope between 1910 and 1920, and the slope between 1920 and 1930 , and averaging them, 

The slope between 1910 and 1920 is:

 

The slope between 1920 and 1930 is:

 

So, the rate of growth in 1920 is approximately ,

million people per year.

 

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