7th grade Math Guide

●​ Determine if two quantities are in a proportional relationship by testing equivalent ratios ●​ Determine if two quantities are in a proportional relationship by graphing and checking for a straight line through the origin, (0, 0). ●​ Find the constant of proportionality from tables, graphs, equations, diagrams, or verbal descriptions. ●​ Write an equation for a proportional relationship in the form y = kx ●​ Explain the meaning of a point (x, y) in terms of the situation, especially (0, 0) and (1, r) where r is the unit rate.

KEY VOCABULARY

●​ Equivalent Ratios ●​ Proportional Relationship

●​ Constant of Proportionality ●​ Origin