12/19

I have read your explanation of my word problem. The formula I am using:

Asin(or cos)[pi/k +(or)-c/k] + h

I have played around with the info in the word problem and have come up with a few different equations. I do not know if they are correct. Here they are:

h = 2.5 cos[3pi(t)] + 2.5

h= -2.5cos[4pi/3(t)] + 2.5

h= 2.5sin[3pi(t)] + 2.5

h = -2.5sin[4pi/3(t)] + 2.5

I am still not sure whether to use sine or cosine.

These equations are very similar--however, with all the other problems I have done similar to this one, I have used sine.

Thanks for your help. Hope to hear from you soon.

Joanie