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The line graph shows the population of Sun City over a 20-year period.

Year

 Population of Sun City (in thousands)

1975

30

1980

32

1985

40

1990

45

1995

55
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model.gif Using the graph above, how much did the population of Sun City increase from 1980 to 1990?
      Solution: From the graph determine the populations for 1980 and 1990 and then subtract their values to find your answer.

    Answer: The population of Sun City increased by 13,000 people.
    NOTE: Read the question carefully, then read the graph carefully. Pay particular attention to the scale.

TRY THIS ONE check.gif

 Using the graph above, during which 5-year period was the increase in the population the greatest?
pencil.gifPRACTICE
Continue using the graph above for Exercises 1-4
1. During which 5-year period was the increase in the population the least? 3. How much did the population of Sun City increase from 1985 to 1995?
2. How much did the population of Sun City increase from 1975 to 1985? 4. How much did the population of Sun City increase from 1975 to 1995?

 

 

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