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Unformatted text preview: Periodic Functions and
Symmetry
Symmetry
Section 2.1 A periodic function is a function that repeats
periodic
itself.
itself. Even Functions
Even If
If f(x) = f(x) for every value in its domain,
f(x)
then the function is an even function.
then Even axis. functions are symmetric to the y Odd Functions
Odd If
If f(x) = f(x) for every value in its domain,
f(x)
then it is said to be an odd function.
odd Odd functions are symmetric to the origin. A graph is symmetric to the xaxis if every
graph
point (a, b) has a point (a, b) on the
(a,
(a,
grfaph.
grfaph. Joke Time
Joke What Get did pi say to i? real! What Be did i say to pi? rational. What did onehalf say to one? You’re full of yourself! ...
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 Winter '11
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 Calculus

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