By reversing the movements from the endpoint (8, 2), you started at (6, 9) before moving right 2 units and down 7 units.
If you moved right 2 units and down 7 units from a certain point and ended up at (8, 2), you can determine your starting point by reversing these movements. Reversing the rightward movement means moving left, and reversing the downward movement means moving up.
Starting from (8, 2), moving left 2 units brings you to (8 - 2, 2) = (6, 2). Then, moving up 7 units from (6, 2) results in (6, 2 + 7) = (6, 9). Therefore, you started at the point (6, 9).
In summary, you began at the coordinates (6, 9) before moving right 2 units and down 7 units, ultimately reaching (8, 2).