Biologists notice an alarming trend in the walleye population in Lake Erie. Despite annual restocking rates of 2 million fish,

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)

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  1. f(x) = 26000000(.85)^x + 2,000,000

    f(1) = 26,000,000

    f(2) = 24100000

    f(3) = 22485000

    f(4) = 21112250

    Geometric, it is going down by a %, not a fixed number

    Year 5, less pollution

    f(8) = 9,084,753.65

    Step-by-step explanation:

    f(2) = 26,000,000 (.85)^2 + 2,000,000

    f(2) = 24100000

    f(3) = 26,000,000 (.85)^3 + 2,000,000

    f(3) = 22485000

    f(4) = 26,000,000(.85)^4 + 2,000,000

    f(4) = 21,112,250

    f(8) = 26,000,000(.85)^8 + 2,000,000

    f(8) = 9,084,753.65

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