In this function, x represents the number of 2) HOURS WORKED PER WEEK.
Profit is net of the fixed income of 8600 and variable cost of 22 hourly rate times the number of hours worked by the employee.
Example:
If the employee worked for 100 hours, then the profit would be:
P(x) = 8600 - 22(100)
P(x) = 8600 - 2200
P(x) = 6400
Even if the employee works 24 hours for the whole week or 7 days, they will still earn profit.
24 hours x 7 days = 168 hours
P(x) = 8600 - 22(168)
P(x) = 8600 - 3696
P(x) = 4904