Give a possible expression for a rational function \(r(x)\) of the following
description: the graph of \(r\) is symmetric with respect to the \(y\) -axis; it
has a horizontal asymptote \(y=0\) and a vertical asymptote \(x=0,\) with no \(x-\)
or \(y^{2}\) intercepts. It may be helpful to sketch the graph of \(r\) first. You
may check your answer with a graphing utility.
