The RationalFunctionTutor(f) command launches a tutor interface that demonstrates the graphing of the rational function f.  If f has any asymptotes, they are also displayed.

If f is not specified, RationalFunctionTutor uses a default function.

If an expression in one variable is specified, the tutor replaces the variable name with x.

$\mathrm{with}\left(\mathrm{Student}\left[\mathrm{Precalculus}\right]\right)\:$

$\mathrm{RationalFunctionTutor}\left(\right)$

$\mathrm{RationalFunctionTutor}\left(\frac{x^3+x^2-x+1}{x^3}\right)$