Evaluating Taylor polynomials



Dear list,
   I am new to maxima and I have the following problem.

With

fT : taylor(f(x,y),[x,y],[0,0],2);

I compute the Taylor expansion of a generic function f(x,y). Now, I
would like to evaluate the Taylor polynomial at a given point: let's
say x=-1 , y=1. How can I do this?

Thank you,
   Marco