A message in a bottle is floating on top of the ocean in a periodic manner. The time between periods of maximum heights is 20 seconds, and the average height of the bottle is 10 feet. The bottle moves in a manner such that the distance from the highest and lowest point is 4 feet. A cosine function can model the
movement of the message in a bottle in relation to the height
Part A Determine the amplitude and period of the function that could model the height of the message in a bottle as a function of time, L (5 points)
Part B Assuming that at t=0 the message in a bottle is at its average height and moves upwards after, what is the equation of the function that could represent
the situation? (5 points)
Part C. Based on the graph of the function, after how many seconds will it reach its lowest height? (5 points)