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Lesson Plan

10. Predict values using a line of best fit (A)

teaches Common Core State Standards CCSS.Math.Practice.MP5 http://corestandards.org/Math/Practice/MP5
teaches Common Core State Standards CCSS.Math.Content.8.SP.A.3 http://corestandards.org/Math/Content/8/SP/A/3
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Lesson objective: Solve problems by using a line of best fit to predict values for the dependent and independent variables.

This lesson provides an opportunity for students to apply their knowledge and understanding of lines of best fit to a real-life situation. Students are asked to determine how many cars need to be washed to raise $700 and how much money will be raised if 150 cars are washed by using a line of best to predict values.

Key Concept students will use: 

  • A linear model of bivariate data that has a slope and intercept may be used to predict values in real-world problems.

Skills students will use:

  • Determine a line of best fit.
  • Predict values of the dependent and independent variables.

Students engage in Mathematical Practice 5 (Use appropriate tools strategically) as they use a line of best fit to predict values of the dependent and independent variables.

Key vocabulary: 

  • bivariate data
  • dependent variable
  • independent variable
  • line of best fit
  • scatter plot

 

Related content

Appears in

Patterns of association in bivariate data

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