+296 A series of locks manages the water height along a water source used to produce energy. As the locks are opened and closed, the water height between two consecutive locks fluctuates.
The height of the water at point B located between two locks is observed. Water height measurements are made every 10 minutes beginning at 8:00 a.m.
It is determined that the height of the water at B can be modeled by the function f(x)=−11cos(πx/48−5π/12)+28, where the height of the water is measured in feet and x is measured in minutes.
Fill in a value or phrase into each box to correctly complete the statements.
