Topic A begins to examine the relationship between two variables using linear functions (8.F.B.4). Linear functions are connected to a context, using the initial value and slope as a rate of change to interpret the context. Students represent linear functions by using tables and graphs and by specifying rate of change and initial value. Slope is also interpreted as an indication of whether the function is increasing or decreasing and as an indication of the steepness of the graph of the linear function (8.F.B.5). Nonlinear functions are explored by examining nonlinear graphs and verbal descriptions of nonlinear behavior.
Grade 8 Mathematics Module 6, Topic A, Overview
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