a cork is floating in a lake bobbing in simple harmonic motion. its displacement above the bottom of
the lake is modeled by y = 0.2 cos(20st) + 8 where y is measured in meters and t is measured in
minutes.
find the maximum displacement of the cork. (difference between highest and lowest positions)
0.4 meters
8 meters
0.2 meters
1 meter

The best Awnser for this is D.

Options A and C are parabola, not Hyperbolas.

Step-by-step explanation:

https://www.symbolab.com/solver/hyperbola-function-foci-calculator/foci%20%5Cfrac%7B%5Cleft(y-16%5Cright)%5E%7B2%7D%7D%7B9%5E%7B2%7D%7D-%5Cfrac%7B%5Cleft(x%2B1%5Cright)%5E%7B2%7D%7D%7B12%5E%7B2%7D%7D%3D1

go to this link for an online calculator for finding Foci in both parabolas and Hyperbolas