Line Graph Analysis and Creation
A Picture is Worth a Thousand Words

Print this page and use it to complete the lesson.

Line Graphs -- Analysis of Data:
1. Go to
2. Answer these questions:
  • What is the definition of productivity?
  • Estimate the output and hours worked during the third quarter of 1992.
  • Calculate output/hour during the third quarter of 1992. Locate this point on the graph. What do you notice?
  • Do the same calculations for another quarter. What do you notice? Why?
  • In the third quarter of 1997, why is productivity so low?

Line Graphs -- Creation:
1. Go to
2. Scroll down to "Trends." Select a product that is of interest to you. Create a line graph showing value per year.
3. Answer these questions:
  • What was the best year for your product? The worst?
  • Predict the value of your product for the next 3 years. Defend your prediction.

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