1.) Biologists notice an alarming trend in the walleye population in Lake Erie. Despite annual restocking rates of 2 million fish, the population is decreasing by 15% each year. They estimate the walleye population was 26 million at the beginning of the current year. Write a sequence to represent the population for the first 4 years. (remember the restocking amount)
2.) Is this sequence geometric or arithmetic? How do you know?
3.) Walleye populations are considered to be in a rehabilitation state when they are between 15 and 20 million. In what year will the population reach this level? In addition to a harvest restriction, what intervention could be used?
4.) What will the population of walleye be in year 8?
5.) Using the formula
Sn= a1-a1(1+r)^n/1-(1+r)
the sum of the population for the first 10 years?