x and y coordinates and angle

[Flashgamr]

Hello,

I know this question might sound stupid to most of you guys but it is very necessary for me to know the answer.

How can you get x and y coordinates of an instance? My instance is called "rock". This is what I have tried:

onClipEvent(enterFrame){
    trace(rock.x);
    trace(rock.y);
    } 

but it does not work.

Next, how can I make this instance go up by a certain angle?

Thank you very much.