Question

Today, high tide measured 7.5 ft and low tide measured 3 ft. What is the amplitude of a cosine function modeling the depth of the water in feet as a function of time in hours?

Answer 1

2.25 ft

Explanation:

Answer 2

The amplitude of wave is
`A = 2.25\,ft`.

Explanation:

The amplitude is computed by using the following expression:

`A = (7.5\,ft - 3\,ft)/(2)`

`A = 2.25\,ft`