We've just updated this activity. In this investigation, Brian looks at the changes in movie ticket prices over the last 30 years. Using his scatter plot (or his data) students analyze rates of change, make predictions about the future ticket costs, guesses about past costs and try to create lines of best fit.
Activity Sheet: movie-ticket-prices+activity.pdf
For members we have an editable Word docx, an Excel sheet of the data and chart, and solutions.
— Ms. G Herrington (@MathandMsH) March 18, 2015