A function defined by a relation of the form
f(
x) = \({x}^{2}\), where
n is a real number.
Examples
Consider the power function defined by f(x) = \({x}^{n}\).
- If n > 0, the function is a polynomial function : f(x) = \({x}^{2}\).
- If n < 0, the function is a rational function : f(x) =\({x}^{-2}\) = \(\frac{1}{{x}^{2}}\).