Big Ideas:
Bivariate quantitative variables can be represented by a table, graph, and a prediction equation, and estimates can be made from each.
This lesson builds on students work in the 8th grade. In the 8th grade students solved problems in the context of bivariate measurement data. This lesson focuses on two variables which have a linear association. Students will use different methods to estimate the solutions to problems This lesson is extended in Algebra 2 by focusing on quadratic, exponential, and trigonometric associations.
Vocabulary:
scatter plot, association, least squares regression equation, slope, intercept, interpolation, extrapolation
Special Materials:
Text Messaging Data
Lesson plan