Answer:
C. y = 45.6 in
Explanation:
Given equation:

where:
- y is the depth of the water (in inches).
- x is the distance a guest lands away from the far wall (in inches).
If a guest lands 36 inches from the wall, then x = 36.
Substitute x = 36 into the equation:





Therefore, the depth of the water is 45.6 inches (since -45.6 inches means it is that distance below the surface).