WeBWorK Standalone Renderer

For the equation, $\displaystyle y = -\frac{1}{x}$ , find the $y$ -coordinate for each value of $x$ .
(Note: If a value is undefined, enter undefined .)

$x$	$y$
$\frac{-1}{3}$
$0$
$\frac{1}{2}$
$3$

You can earn partial credit on this problem.