Teacher answer key for the Lesson 7.9 Prep Packet. Includes step-by-step solutions for modeling tasks, a quick-check grid for independent practice, and conceptual guidance for the exit ticket.

A unified teacher answer key for the cumulative mastery test and homework packet. Includes a fast-grading grid for multiple choice and step-by-step solutions for open-ended problems. Revised for LaTeX alignment and clarity.

A 10-question cumulative homework packet designed to prepare students for the final mastery test. Features a mix of multiple-choice and multi-part open-ended problems covering all unit themes. Revised with workspace for all problems and a coordinate grid for sketching.