Answer
$y = \frac{-25}{x}$ or $xy = -25$
Work Step by Step
Our equation for an inverse variation is $y = \frac{k}{x}$ or $xy = k$. We will use the second form of the equation to solve for k.
$-5\times5 = k$
$ -25 = k$
$k = -25$
Therefore, our equation for the inverse variation is $y = \frac{-25}{x}$ or $xy = -25$
