Question

The depth of water in a tank oscilliates sinusoidally once every 6 hours. If the smallest depth is 5.5 feet and the largest depth is 8.5 feet, find a possible formula for the depth of time inhours.

I say f(x)=6.75+1.25sin(pi/3)

Am I right
bobpursley
Correct.
I believe it should have been

y = 7 + 1.5sin(pi/3)t

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