The graph below describes the cycles of the Moon as observed from Earth
during the first 60 days of a year. The percentage of the Moon which we
see varies as a function of time. A full moon corresponds to 100% visibility
and a new moon corresponds to 0% visibility.
Complete the following sentences based on the graph of the function.
• The first new moon of the year was on day
. The second new moon of the year was on day
•
Therefore, the period between two new moons is approximately
days long.