paper folding exponential functions
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TCC Math 1513Peterson
Paypah Foldin’
Q: Before you start, describe what a negative exponent means.
For example, what’s another way to write 2−2? What about ( 12 )−2
?
A:
a) Fold this paper once. How many sections did you create? _________ What’s the fractional area of each section? ___________
b) Fold this paper again. How many sections now? ___________What’s the fractional area of each section? ___________
c) Go ahead and fold it one more time. How many sections do you have? __________What’s the fractional area of each section? ___________
Fill in the chart…
Number of Folds Number of Sections Created Fractional Area of Each Section0123x
So if x is the number of folds and if f (x) is the number of sections created, then f (x)=¿______________.
Similarly, if x is the number of folds and g(x ) is the fractional area of each section, then g ( x )=¿ _____________.
Fill in some more charts. Use the charts to sketch the graphs of f (x) and g(x ) on the same set of axes.
x f ( x )=¿_________________ g ( x )=¿ _________________
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-1
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