ALEX Resources

   View Standards     Standard(s): [MA2019] REG-8 (8) 16 :

16. Construct a function to model a linear relationship between two variables.

a. Interpret the rate of change (slope) and initial value of the linear function from a description of a relationship or from two points in a table or graph.

[MA2019] REG-8 (8) 17 :

17. Analyze the relationship (increasing or decreasing, linear or non-linear) between two quantities represented in a graph.

Module 6, 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 the rate of change and initial value. The 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.