I have a test tomorrow, please HELP me! How would I tell if a function is odd, even, or neither even nor odd?
For an example, consider the following function (of course, it passes the vertical line test, but doesnt look like it on the handdrawn sketch: |dw:1337310520722:dw|
@AccessDenied
How can you tell graphically? And looking at a given function?
Well, what is the definition of an odd function and an even function?
I dont know ...
Well, an odd function will satisfy: f(-x) = -f(x). On the graph of f(x), this literally means that the values of the graph on the left side of the y-axis (negative values of x) is going to be the negative value for that f(x) for the positive x.
For an even function, the condition is that "f(-x) = f(x)." Graphically, this means that the left side is going to be a mirror image of the right side because the y-value is the same for a negative x as a positive x. A good example of an even function is y = x^2. x=-2 and x=2 have the same y-value, 4.
If a function is even, then the graph to the left of the y axis will look like a mirror image of the right side as in the graph below.|dw:1337311414219:dw| (And as access denied just stated)
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