Proportionality. The student applies mathematical process standards to use proportional and non-proportional relationships to develop foundational concepts of functions.

8.5.ARepresent linear proportional situations with tables, graphs, and equations in the form of y = kx.8.5.BRepresent linear non-proportional situations with tables, graphs, and equations in the form of y = mx + b, where b ≠ 0.8.5.CContrast bivariate sets of data that suggest a linear relationship with bivariate sets of data that do not suggest a linear relationship from a graphical representation.8.5.DUse a trend line that approximates the linear relationship between bivariate sets of data to make predictions.8.5.ESolve problems involving direct variation.8.5.FDistinguish between proportional and non-proportional situations using tables, graphs, and equations in the form y = kx or y = mx + b, where b ≠ 0.8.5.GIdentify functions using sets of ordered pairs, tables, mappings, and graphs.8.5.HIdentify examples of proportional and non-proportional functions that arise from mathematical and real-world problems.8.5.IWrite an equation in the form y = mx + b to model a linear relationship between two quantities using verbal, numerical, tabular, and graphical representations.
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