Where does the plane tangent to z = e^(x-y) at (1,1,1) meet the z axis?

How do I go about solving this problem? Am I suppose to use the tangent plane equation?

- Feb 1st 2011, 07:24 PMelpermicWhere does the plane tangent to z = e^(x-y) at (1,1,1) meet the z axis?
Where does the plane tangent to z = e^(x-y) at (1,1,1) meet the z axis?

How do I go about solving this problem? Am I suppose to use the tangent plane equation? - Feb 1st 2011, 08:17 PMTheEmptySet