THINKING: amp
1. The average depth of water at the end of a dock is 6 feet. This varies 2 feet in both directions with the tide.
Suppose there is a high tide at 12 AM and the tide goes from low to high every 6 hours.
a starting point
a) Write a an equation for function d(t) describing the depth of the water as a function of time with t = 0
corresponding to 12 AM and provide a sketch of the graph of d(t).
ral