Determine If a Rational Function is Even or Odd

The video tutorial explains how to determine if a function is even or odd by substituting negative x into the function. If the result is the original function, it is even; if it is the opposite, it is odd. The tutorial demonstrates this process with examples, emphasizing the importance of simplification and the behavior of negative numbers raised to even powers.

What happens when you plug in a negative value for X in an even function?

Can you explain the significance of even powers in relation to negative numbers?