trigonometry

Hello! I was wondering if someone could check my answer and tell me if I'm on the right track:

"Find a model for simple harmonic motion satisfying the specified conditions"
Displacement(t=0), 2ft
Amplitude, 2ft
Period, 10 sec

This is what I got:
y=2cos pi/5 t

I hope you can read that answer, I had difficultly typing it in without knowing how to insert the symbol for pi. If you could help I would really appreciate it!

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  1. I agree with your solution.

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