Tim and Sam walked down to the pier on a warm summer day to which the tides go in and out. At 9 am hour 9 the water below the pier was at its highest level, 13 feet. Tim and Sam lazily watched the water drop until 3:15 hour 15.25 the water below the pier was at its lowest level a night of 3 feet. Sketch a graph of the sinusoid representing the height of the water. Include 5 important points