If SRAM has technical manuals on their site as Shimano does I can't find them, but from the picture your RD looks like it's "high normal," and I'd be surprised if it isn't, AFAIK most modern derailleurs are. That means that with zero cable tension, the springs on the RD pull it out toward your highest gear - so tzvia has it right.

But it's easy enough to check. Grasp the cable with your fingers and work your shifter - then you'll know for sure which direction of shifting gives you more slack.