Question

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 (t).

A. f(t) = 6 cos pi over 2 t + 2

B. f(t) = 3 cos pi over 2 t + 4

C. f(t) = 6 cos pi over 6 t + 2

D. f(t) = 3 cos pi over 6 t + 4

Answer 1

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