The graph tool allows you to draw graphs of Cartesian, polar, parametric, implicitly defined and inverse functions.
FX Draw shares the graphing tool with FX Graph and a full discussion on how to use it is included in Quick Entry Screen
Available Parameters for Function Graphs
$f1 - definition of function
$point - coordinates of point of interest
when annotating a point of intersection
$f2 - definition of second function in intersection
when annotating an integral
$integral - definite integral
$equation - definition of integral function
$area - area of definite integral
$upper - upper bound of integral
$lower - lower bound of integral
when annotating a tangent line
$slope - gradient of tangent line
$equation - definition of derivative function
$tangentline - equation of tangent line
$at - point at which tangent line touches function
$intercept - y intercept of tangent line