The Weebles Exponential Decay Exponent Worksheets
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1The Weebles
Exponential Decay
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What is the value of a for your group’s weeble experiment?
Assume that the weeble population actually decreases at a rate of 22% each year.
Write an exponential decay model for the extinction of the weebles using your value for
a. Graph this function.
How many “years” did it take for your group’s weebles to become extinct?
Is this more or less than expected? Why?
Assume that there are 1000 weebles in existence. After 1 year, about how many weebles
will remain? After 5 years? Graph this function and determine about how many years it
will be until only 100 weebles remain.
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