The population of a herd of deer is modeled by
P(t) =4000 + 500sin(2πt - π/2)
where t is measured in years since Jan. 1

A) How does this population vary with time? sketch thegraph of P(t) for one year.
B) Use the graph to decide when in the yr the populationis a maximum. What is the maximum? Is there a minimum? If so,when?
C) Use the graph to decide when the population isgrowing fastest. When is it decreasing fastest?
D) Estimate roughly how fast the population is changingon the first of July.