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Inverse variation can be expressed as a power function by using a exponent.

The number $n$ in the expression $\sqrt[n]{b}$ is called the of the radical.

We use exponents to denote radicals.

State the law of exponents that shows that $a^{1/2}$ is a square root of $a\text{.}$

$a^m\cdot a^n=a^{m+n}$
$\frac{a^m}{a^n}=a^{m-n}$
$\left(a^m\right)^n=a^{mn}$
$(ab)^n=a^n b^n$
$\left(\frac{a}{b}\right)^n=\frac{a^n}{b^n}$