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Scatter Plots (Line of Best Fit)




 


Videos and lessons to help Grade 8 students know that straight lines are widely used to model relationships between two quantitative variables. For scatter plots that suggest a linear association, informally fit a straight line, and informally assess the model fit by judging the closeness of the data points to the line.

Common Core: 8.SP.2

Suggested Learning Targets


  • I can show how straight lines are used to model relationships between two quantitative variables.
  • I can informally assess the model fit by judging the closeness of the data points to the line
  • I can fit a straight line within the plotted data.


Related Topics:
Common Core for Grade 8

Common Core for Mathematics

More Math Lessons for Grade 8

Modeling and interpreting bivariate measurement data — (Common Core Standard 8.SP.2)
In this lesson you will learn how to interpret scatter plots by identifying the line of best fit.


Fit a linear function to a scatterplot - 8.SP.1
In this lesson, you will learn to fit a scatter plot to a linear equation.





8.SP.2 - Writing Function Rules for Scatterplots.


Fitting a line to data.



 

Experimenting with STEM: The Barbie Bungee Jump
Grades 6-8 / Math / Engineering
CCSS: Math.8.EE.C.8c Math.8.SP.A.1 Math.8.SP.A.2
Lesson Objective
Apply knowledge of the line of best fit when designing bungee jumps.

Learn Scatter Plots and Best Fitting Lines
This video explains what a scatter plot is and how to find the best fitting line.




Scatter Plots and Line of Best Fit.


How to find the Line of Best Fit
This video will demonstrate how to find the line of best fit and how to calculate the equation of the line for given data.



 

Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.


You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.


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