Lesson plan

Model two sets of real-world bivariate data by making a linear regression system of equations

teaches Common Core State Standards CCSS.Math.Content.HSS-ID.B.6a http://corestandards.org/Math/Content/HSS/ID/B/6/a

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Big Ideas Problems that exist within the real-world, including seemingly random bivariate data, can be modeled by various algebraic functions. This lesson builds on students’ prior work with linear regression modeling and linear systems. This task focuses on the bivariate data obtained from two different car companies: one that is increasing in sales while the other is decreasing in sales. This builds towards their understanding of nonlinear regression systems modeled later in Algebra 2 and in Advanced Placement and college level courses. Vocabulary: linear, regression, model, correlation coefficient, coefficient of determination, systems of equations, bivariate data Special Materials: Graphing calculator or spreadsheet software for regression modeling.