The TangentTutor(f) command launches a tutor interface that plots the tangent line to the graph of f at the point a and computes the equation of the tangent line.

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

If a is not specified, TangentTutor uses a default point.

If var is not specified, TangentTutor uses a default variable.

$\mathrm{with}\left(\mathrm{Student}\left[\mathrm{Calculus1}\right]\right)\:$

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

$\mathrm{TangentTutor}\left(1-\exp \left(x\right)\right)$

$\mathrm{TangentTutor}\left(1-\exp \left(x\right)\,4\right)$

$\mathrm{TangentTutor}\left(1-\exp \left(x\right)\,x=4\right)$