I am stuck on e). I also don't understand what values 5:00 AM and 5:00 PM are on the x axis. Are they 5 and 17? Please help!

- Mar 2nd 2009, 06:34 PMs3aTrouble with a problem consisting of find the rule of a sine function
I am stuck on e). I also don't understand what values 5:00 AM and 5:00 PM are on the x axis. Are they 5 and 17? Please help!

- Mar 2nd 2009, 11:51 PMnzmathman
minimum tide is 10m and maximum is 22m, so therefore the mean is 16m.

So to get the corresponding times you need to solve f(x) = 16. I am assuming you have already calculated a, b and k correctly.

And yes in 24hr hour time, 5am = 05:00 and 5pm = 17:00. - Mar 3rd 2009, 11:24 AMs3a