Answer:
2 1/8 ft
Explanation:
If it is centered, there is equal space between the picture and the wall on the left, and between the picture and the edge to its right. To equally distribute the distance, we divide by extra space by 2.
The picture covers 10 1/4 ft of the 14 1/2 ft. So the uncovered space is
14 1/2 - 10 1/4 = 14 2/4 - 10 1/4 = 4 1/4
4 1/4 /2 = 2 1/8