7.RP.A.2

Sub-standards

• 7.RP.A.2.aDecide whether two quantities are in a proportional relationship, e.g., by testing for equivalent ratios in a table or graphing on a coordinate plane and observing whether the graph is a straight line through the origin.
• 7.RP.A.2.bIdentify the constant of proportionality (unit rate) in tables, graphs, equations, diagrams, and verbal descriptions of proportional relationships.
• 7.RP.A.2.cRepresent proportional relationships by equations. For example, if total cost t is proportional to the number n of items purchased at a constant price p, the relationship between the total cost and the number of items can be expressed as t = pn.
• 7.RP.A.2.dExplain what a point (x, y) on the graph of a proportional relationship means in terms of the situation, with special attention to the points (0, 0) and (1, r) where r is the unit rate.

Where this sits in the school year

Our Grade 7 Math scope and sequence teaches 7.RP.A.2 in Unit 5: Unit Rates & Proportional Relationships, weeks 13–15.

Compute unit rates from ratios of fractions, then recognize and represent proportional relationships in tables, graphs, and equations. See the full pacing guide →

Builds on

Suggested prerequisites. This sequencing is our editorial guidance, not part of the Common Core.

Teaching Kits for this standard

Browse the library filtered to 7.RP.A.2 →