Question

The average salary of a garbage man (in thousands) from 1985 to 2001 is represented by the function f(x) = 145x + 192 where x is the number of years since 1985.

a) Find f(5) and explain what f(5) means in the context of the problem.

Answer 1

To find f(5), substitute x = 5 into the function f(x) = 145x + 192. In the context of the problem, f(5) represents the average salary of a garbage man in the year 1990.

Step-by-step explanation:

To find f(5), we substitute x = 5 into the function f(x) = 145x + 192.

f(5) = 145(5) + 192

f(5) = 725 + 192

f(5) = 917

In the context of the problem, f(5) represents the average salary of a garbage man (in thousands) in the year 1990 (since 1985 + 5 years).