Question

If you work for an hourly wage, your gross pay is a function of the number of hours that you work. Your hourly wage is $9 per hour.

Let n represent the number of hours worked and f(n) represent the gross pay. Write an equation for f(n) in terms of n. Then, evaluate f(10) and write a sentence explaining the meaning of f(10).

Answer 1

f(n)=9n

f(10)=9(10)
f(10)=90

f(10)=90 means that when you work 10 hours your gross pay is $90.

Answer 2

The required equation is f(n) = 9n,

f(10) = 90,

f(10) represents the gross pay for 10 hours.

Explanation:

Here, n represents the number of hours of working and f(n) represents the total gross pay,

Since, the hourly wage is $9 per hour,

⇒ Gross pay for 1 hours = $ 9,

⇒ Gross pay for n hours = 9n,

⇒ f(n) = 9n,

Which is the required equation in term of n,

For 10 hours,

The gross pay = f(10) = 9 × 10 = $ 90