About This Lesson
First pdf file is received from my colleague which is originally from the "Illustrative Math" - See bottom of 2nd page for detailed source. I later decided to edit the questions and develop more in-depth guided activity (Part I) and assessment (Part II) to help student to learn analyze rate of change proportionally on graph and develop the simple rational equation to solve for x or y value. The 3rd added file is linear modeling case based on the same story
