In a rational exponent, what does the denominator of the fraction stand for?

1. A rational exponent is a fraction written where an exponent would go. 2. The numerator of that fraction gives the power applied to the base. 3. The denominator gives the root taken of the base, so a denominator of 2 means a square root. _Source: OpenStax College Algebra (CC BY 4.0), section 2.6 Other Types of Equations_