Even and Odd funcys (functions)

The first image there shows an even funtion and the second one shows an odd function.

EVEN function:

For any function of f(x),when you alter the input (x), the graph of the function changes. In this case the image of the graph is mirrored when the input is made negative. Therefore, if a graph that is symmetrical about the y-axis is transformed into f(-x), it will be exactly the same as the orginal function.

ODD function:

In odd functions the oppisite is shown. Symmetry is one of inversion at the origin in an odd function. Any point in the top right quadrant leads onto one at the bottom, thus proving an odd function f(-x) = -f(x). and commonly uses odd powers.