Question

The water level varies from 12 inches at low tide to 52 inches at high tide. Low tide occurs at 9:15 a.m. and high tide occurs at 3:30 p.m. What is a cosine function that models the variation in inches above and below the water level as a function of time in hours since 9:15 a.m.?

Answer 1

Set up a trig equation. With 12 being the min and 52 the max. 52-12 would be the displacement value in the trig equation.

Answer 2

thats the answer

Answer 3

no

Answer 4

can try and help because this is the last question on my homework