About This Lesson
I have found out that there are many older version textbook very useful. The graph and the original case can be rewritten into investigation base activity. This activity is rewritten based on the original question "Real Life Example 3" on Page 81 in Algebra 2 2008 (red cover) by Glencoe
By guiding students working the first two page, they should be working on their own at the third page. The third page can be served as the quiz. On page 2 #6,a and b, teacher can use embedded ideas of rise over run to explain the concept or slope along with "y2-y1 over x2-x1"
