Washington State K–12 Learning Standards and Guidelines
WA.7.RP. Ratios and Proportional Relationships
Analyze proportional relationships and use them to solve real-world and mathematical problems.
7.RP.2. Recognize and represent proportional relationships between quantities.
7.RP.2(b) Identify the constant of proportionality (unit rate) in tables, graphs, equations, diagrams, and verbal descriptions of proportional relationships.