Hi,

I hope someone can help. I'm currently trying to solve this following problem:

These are the characteristics of the functions which I believe are correct (please let me know if I'm wrong):

- amplitude = 16.2

- equation of axis = 1.4

- period = pi/6

- phase shift = 7/2 (assuming that January = 1, and December = 12 on the x-axis)

This results in the equation y=16.2sin(pi/6(x-7/2))+1.2

With this equation, I can now determine when the function is below 0 degree celsius by creating an inequality statement and then solving for x.

Is this the correct way to approach this problem? Please let me know where my thinking is off. Please provide me with hints than just answers! I want to learn. Thank you.

Sincerely,

Olivia