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In Bear Creek Bay in July, high tide is at 1:00 pm. The water level at

high tide is 7 feet at high tide and 1 foot at low tide. Assuming the

next high tide is exactly 12 hours later and the height of the water can

be modeled by a cosine curve, find an equation for Bear Creek Bay's

water level in July as a function of time..

Verified Answer :

arnfrs

My trig is a bit rusty, but I'll give it a try:

\($h=4-3\cos((t+5)\frac{\pi }{6})$\)

Here, h represents the height and t represents the time (as in 1:00, 2:00, etc.). The curve works, but it was after a bit of trial and error.


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