Question

The function f(x) = 150 + 35x represents the price a hotel charges for x nights, including a $150 charge for parking.

a. What is the total bill for four nights at the hotel?

b. How many nights must you stay to have a bill of $430?

Answer 1

For the 4 night at the hotel, the answer is 290 since you insert 4 in where the x should be 150+35(4). For the second question, the answer is 8 since you subtract the money you have (430) by the parking cost (150). This lead to 280 and you divide it by the amount you need to spent on hotel charge per night (35) and you get 8. That means that you can spend 8 night at the hotel.