Name:
Investigation 2.3: Walking for Charity
A. 1. Complete the table showing the amount of money a sponsor would owe under
each pledge plan if a student walked distances between 0 and 10 miles.
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Distance (miles) |
Money Owed Leanne Gilberto Alana |
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8 |
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9 |
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10 |
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2. Graph the three pledge plans on the same coordinate axes. Use a different color for each plan.
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3. For each pledge plan, write an equation that can be used to calculate the amount of money a sponsor owes, given the total distance the student walks.
Leanne à
Gilberto à
Alana à
B. What effect does increasing the amount pledged per mile have:
On the table?
On the graph?
On the equation?
C. If a student walks 8 miles in the walkathon, how much would a sponsor owe under
each pledge plan? Explain how you got your answer.
Leanne à
Gilberto à
Alana à
D. For a sponsor to owe a student $10, how many miles would the student have to walk
under each pledge plan? Explain how you got your answer.
Leanne à
Gilberto à
Alana à
E. Alana suggested that each sponsor make a $5 donation and then pledge 50 cents per
mile. How is this fixed $5 donation represented:
In the table?
In the graph?
In the equation?