# Module 6: Linear functions

## Topic A: Linear functions

Learn
Recognizing linear functionsLinear & nonlinear functions: tableLinear & nonlinear functions: word problemLinear & nonlinear functions: missing valueInterpreting a graph exampleComparing linear functions: equation vs. graphComparing linear functions: table vs. graphComparing linear functions: table vs. graph
Practice
Linear & nonlinear functionsGet 5 of 7 questions to level up!
Interpreting graphs of functionsGet 3 of 4 questions to level up!
Compare linear functionsGet 3 of 4 questions to level up!

## Topic B: Bivariate numerical data

Learn
Constructing a scatter plotExample of direction in scatterplotsScatter plot: smokersOutliers in scatter plotsClusters in scatter plotsEstimating the line of best fit exerciseLine of best fit: smoking in 1945Interpreting a trend line
Practice
Constructing scatter plotsGet 3 of 4 questions to level up!
Making appropriate scatter plotsGet 3 of 4 questions to level up!
Describing trends in scatter plotsGet 3 of 4 questions to level up!
Eyeballing the line of best fitGet 3 of 4 questions to level up!
Estimating slope of line of best fitGet 3 of 4 questions to level up!

## Topic C: Linear and nonlinear models

Learn
Linear graphs word problemsModeling with tables, equations, and graphsLinear graphs word problem: catsLinear equations word problems: volcanoLinear equations word problems: earningsModeling with linear equations: snowComparing linear functions word problem: climbComparing linear functions word problem: walkComparing linear functions word problem: workLinear function example: spending moneyModeling with linear equations: gym membership & lemonadeFitting a line to data
Practice
Linear equations word problems: graphsGet 3 of 4 questions to level up!
Linear equations word problemsGet 3 of 4 questions to level up!
Comparing linear functions word problemsGet 3 of 4 questions to level up!
Graphing linear relationships word problemsGet 3 of 4 questions to level up!
Writing linear functions word problemsGet 3 of 4 questions to level up!
Linear models word problemsGet 3 of 4 questions to level up!

## Topic D: Bivariate categorical data

Learn
Two-way frequency tables and Venn diagramsTwo-way frequency tablesTwo-way relative frequency tablesInterpreting two-way tables
Practice
Read two-way frequency tablesGet 3 of 4 questions to level up!
Create two-way frequency tablesGet 3 of 4 questions to level up!
Create two-way relative frequency tablesGet 3 of 4 questions to level up!
Read two-way relative frequency tablesGet 3 of 4 questions to level up!
Interpret two-way tablesGet 3 of 4 questions to level up!