In this video lesson, students make connections between the graph and the context modeled by the proportional relationship, and between the graph and the equation for the proportional relationship. Given a graph, they consider a situation it might represent and learn the importance of being precise when naming quantities on each axis (MP6). They interpret the meaning of the point (1, k) on the graph, both in term of the constant of proportionality k in the equation y = kx and in terms of a constant rate in the context.
Grade 7, Episode 6: Unit 2, Lesson 11 | Illustrative Math