Scatter Plots: Line of Best Fit MATCHING Activity

This resource was developed to partially meet the requirements of the 8th Grade Statistics & Probability standards below (portions met in bold):

CCSS.MATH.CONTENT.8.SP.A.2
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.

CCSS.MATH.CONTENT.8.SP.A.3
Use the equation of a linear model to solve problems in the context of bivariate measurement data, interpreting the slope and intercept. For example, in a linear model for a biology experiment, interpret a slope of 1.5 cm/hr as meaning that an additional hour of sunlight each day is associated with an additional 1.5 cm in mature plant height.

It contains 16 matching problems between scatter plots and linear equations, where students are asked to:

· 1) Choose the linear equation that would be an appropriate line of best fit for each scatter plot

· 2) Graph the equation as a line of best fit through the scatter plot to defend their answer

This practice is great review for graphing slope-intercept form lines as well!