proportional relationships

Learn how to compare proportional relationships and decide which one has the greater constant of proportionality or unit rate using tables, graphs, and equations.

Review the most tested proportional relationship skills with practice ideas, quick checks, and a free downloadable study guide.

Compare proportional and nonproportional relationships using graphs, tables, equations, and real-world examples with clear side-by-side comparisons.

Avoid the most common student mistakes when checking tables, graphs, and equations for proportionality — and learn how to fix each one.

Practice proportional relationship word problems and learn a step-by-step solving method with examples involving speed, shopping, recipes, and more.

Understand why proportional relationships are written as y = kx and what each part means, with tables, graphs, and real-life connections.

Learn what the constant of proportionality (k) means and how to find it from tables, graphs, equations, and word problems with clear examples.

See how to identify proportional graphs by checking the origin, slope, and equivalent ratios — with visual examples and a free interactive checker.

Learn the fastest way to check whether a table shows a proportional relationship using the constant ratio method, with examples and a free practice worksheet.

Understand what a proportional relationship is, how to spot one from tables, graphs, and equations, and how to solve common class problems with step-by-step examples.