Rational function with radical is it even or odd?

The video tutorial explains the concept of even functions by demonstrating how plugging in negative X results in the same function value as positive X. It uses quadratic functions as an example to illustrate this property. A practical example with X=2 is provided to show the symmetry of even functions. The tutorial concludes with a brief introduction to polynomial functions.

What new insight or understanding did you gain from this video?

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