OA.3 Practice Problem

Name: _________________

A farmer was studying the impact of different fertilizers on plant growth.

  • Every 3 weeks, he recorded the data in sets of ordered pairs.
  • The x-coordinate is the number of weeks at the time of recording.
  • The y-coordinate gives the height of the plant in inches.

He recorded the following coordinates for a plant exposed to pollution:


       (3, 2)  (6, 8)   (9, 13)    (12, 17)   (15, 20)


If the pattern continues, at which week should the farmer expect no change in plant height?

What do you notice about the graph and pattern?

Create a chart to help you continue the pattern.

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