What is the label for this orbital that indicates the type of orbital and its orientation in space

What is the label for this orbital (Part B 1 figure) that indicates the type of orbital and its orientation in space?

Here's the image:
http://session.masteringchemistry.com/pr…

Express your answer using appropriate letters (e.g., px ).



I'm not sure what it's asking me to enter?
It looks like p(sub)x^2 and p(sub)y^2 ??

Very confused!

P orbitals are single dumbbell shaped and are oriented along the x, y or z axis. What you are shown is a double dumbbell (a d orbital) that exists between the x and y axis not along them. This particular orbital is called the dxy orbital. See the link below, it shows all d orbital shapes - in particular look at the dxy orbital to verify my answer.(It's in section 7.1)
http://en.wikipedia.org/wiki/Atomic_orbi…