Question

Jabari is power washing houses for a summer job. For ever job he charges an inital fee plus 30 for each hour of work. His total fee for a 4 hour job for instance is 170. Jabari's total fee f for a single job is a function of the number t of hours it takes himeto complete the job. Write the functions formula

Answer 1

f = 30t + 50

Explanation:

He earns 30 for each hour of work. He earns 170 for 4 hours of work.

4 hours x 30 per hour = 120

This means that the initial fee is 50, and then the 120 for 4 hours.

Thus,

f = 30t + 50

where 30t is the money earned from working t hours and 50 is the added initial fee.