Reading and drawing line graphs

Lessons

• 1.
  Mrs. K created a graph to keep track of attendance in her classroom over a week.
  
  
  a)

  On which days were exactly 2 students absent?
  
  
  b)

  How many more students were absent on Friday versus Tuesday?
  
  
  c)

  Which day had the best attendance?
  
  

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• 2.
  Lori kept track of the number of long distance calls she made over a 6 month period.
  

  Calls made by Lori:
  

  Month	Calls
  January	10
  February	5
  March	8
  April	6
  May	4
  June	3

  a)

  Display the data in the table in a line graph.
  
  
  
  
  b)

  Was Lori more, less or just as likely to make long distance calls later in these 6 months?
  
  

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• 3.
  The governments of two cities claim that they have done a very successful job in developing the public transit system over the past 10 years. Below are line graphs showing the average waiting times for a bus in the two cities in the past 10 years.
  
  
  
  a)

  Which government improved the waiting time more?
  
  
  b)

  Which government did a better job in developing public transit system overall?
  
  

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