The student is given actual data and asked to find a line of best fit and to give "real world" interpretations of the slope and y-intercept. A great introduction to the 83/84 and its features.
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Before the Activity
Download the attached file or:
Go to www.TomReardon;
Click on Downloads;
Click on The Phone Bill problem
During the Activity
The directions are self-explanatory. See the teachers notes and solutions for clarifications.
After the Activity
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