Chapter 12, Problem 4P

(a)

To determine

To explain: The sequence that models the amount $A_n$ of the pollutant in the lake at the end of the nth year is $A_n=0.30A_{n-1}+2400$.

(b)

To determine

To find: The first five terms of the sequence $A_n$.

(c)

To determine

To find: The formula for $A_n$ in terms of $n$.

(d)

To determine

To find: The pollutants remain in the lake after 6 year and after a long time.

(e)

To determine

To sketch: The graph of the given equation $A_n=0.30A_{n-1}+2400$.