The part where it says "Dual Graphics" is actually the RAM, and not directly related to the graphics card. I guess they just wrote that there because it was an empty space where they could write things. : D
So yes, the left hand would be where it goes. You'll also likely need to remove a metal slot cover behind it on the back of the case, so that the video ports on the card are accessible from outside of it. You'll need to plug your monitor into the ports on the graphics card, rather than those on the motherboard to make use of it.