In New York City at the spring equinox there are 12 hours 8 minutes of daylight. The longest and the shortest days of the year vary by 2 hours 53 minutes from the equinox. In this year, the equinox falls on March 21. In this task, you’ll use a trigonometric function to model the hours of daylight hours on certain days of the year in New York City. Identify the independent and dependent variables.

Find the amplitude and the period of the function.

Create a trigonometric function that describes the hours of sunlight for each day of the year.