Our moon orbits earth in an elliptical pattern. When the moon is closest to us (referred to as perigee), it is
approximately 360,000 km away. When it is furthest from us (called apogee), it is about 405,000 km away. The moon
does one full orbit around Earth every 27 days, travelling at a constant speed.
On, May 25th, 2023, the moon was in apogee.

a) Write a function that models the moon's distance from Earth over time: y =