In the associated Algebra 1 lesson, students make sense of the vertex of a graph and zeros of a quadratic function that represents a context. This supporting lesson gives students a chance to practice identifying intercepts of graphs representing linear and exponential functions. This lesson is a good opportunity to help students become more comfortable extracting the coordinates of important points on graphs, using the graphing technology that is available to them. The same situation is used in the Warm-up and the following activity to support making sense of problems and persevering in solving them (MP1) as well as reasoning about the quantities (MP2). The activities following the Warm-up explicitly ask students to use graphing technology, determine the coordinates of some points on a graph, and draw connections between the various representations and the context they represent. Students have several opportunities to practice these skills.