Real-Life Investigations
Pennies
The Investigation:
You will
measure the weight of five, ten, fifteen and twenty pennies. You will compare the number of pennies to the
weight in grams.
You Must:
1)
Decide what is the x variable (in) and what is the
y variable (out)
2)
Create a table that compares the two
variables. Be sure to label it.
3)
Graph the data from the table.
4)
Find the expression that matches your graph and
table.
5)
Write a summary of the investigation. What did you
find out?
6)
Answer the following questions:
A)
Using your equation, find out how much $ 2.50 in
pennies would weigh.
B)
Using your graph, find out how many pennies you
have if the total weight is 7 grams. ( Approximate if
necessary.)
