Final answer:
The coordinates of your position are (6, 0, -9).
Step-by-step explanation:
The coordinates of your position are (6, 0, -9). When you start at the origin (0, 0, 0) and move along the x-axis a distance of 6 units in the positive direction, your new position becomes (6, 0, 0). Then, when you move downward along the z-axis a distance of 9 units, your final position becomes (6, 0, -9).