Answer
$\sqrt \frac{9}{y}$ = $\frac{3\sqrt y}{y}$
Work Step by Step
Rationalize the denominator of $\sqrt \frac{9}{y}$=
$\frac{3}{\sqrt y}$
Take square root of numerator and denominator.
$\frac{3\sqrt y}{y}$
Rationalize by multiplying numerator and denominator by $\sqrt y$, to get final answer.
