Be sure you understand the use of function notation by working Exercise. (See...

Be sure you understand the use of function notation by working Exercise.

(See Example 4) In recent years, the number of people in the United States who are 100 years old or older can be estimated by the function

p(t) = 1.32t – 2589.5

where

t = the year

p(t) = the number of people, in thousands, who are 100 or older.

(a) Find p(2010). Find p(2020).

(b) Use the function to estimate when the number of people 100 years or older will reach 100,000.