7.AT.A.2: Identify proportional relationships between quantities. a. Determine whether two quantities are in a proportional relationship, for example, by testing for equivalent ratios in a table or by graphing on a coordinate plane and observing whether the graph is a straight line through the origin. b. Identify the constant of proportionality (unit rate) in tables, graphs, equations, diagrams, and narrative descriptions of proportional relationships.

Identify proportional relationships between quantities. a. Determine whether two quantities are in a proportional relationship, for example, by testing for equivalent ratios in a table or by graphing on a coordinate plane and observing whether the graph is a straight line through the origin. b. Identify the constant of proportionality (unit rate) in tables, graphs, equations, diagrams, and narrative descriptions of proportional relationships.

Example Problems

Graph the proportional relationship:

y = 7x

Graph the proportional relationship:

y = 10x

Graph the proportional relationship:

y = 12x

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