Chapter 1 - Functions and Limits - 1.3 New Functions from Old Functions - 1.3 Exercises - Page 43: 28

$V(t)=2250+250 sin(\frac{π t}{2})$

The average volume is 2250 mL. The amplitude of the graph is 250 mL. The period is 4 seconds. We can use these values to write a function that models the depth: $V(t)=2250+250 sin(\frac{2π }{4}t)$ $V(t)=2250+250 sin(\frac{π t}{2})$