Asked by Mike

I do not understand when a function is even or not. I know the formula for telling them apart, but I do not understand it. Could someone break down the formula for me and explain it?
Thanks

Answers

Answered by bobpursley
http://www.purplemath.com/modules/fcnnot3.htm

It is rather easy:

If f(x)=f(-x) it is even.
If f(x)=-f(-x) it is odd.
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