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## Homework Statement

The function h(t) = 5 sin (30(t+3)) is used to model the height of tides. On a different day, the maximum height is the minimum height is -8 and high tide occurs at 5:30am.

Modify function so it matches new data.

## Homework Equations

## The Attempt at a Solution

Answer: h(t) = 8 sin (30(t-2.5))

I know how to get the 8 b/c (8-(-8))/2 = 8

But I don't understand where the 2.5 comes from?