Cesar rents a bicycle for a flat rate plus $10 per hour. He models the cost of the rental with the function f(x) = 10x+15, where x is the number of hours he rents the bicycle, and f(x) is the total cost of the bicycle rental, including the flat rate and the hourly fee. What is the flat rate for the bicycle rental?

Question

GPT-4o mini · Answer

In the function $ f(x) = 10x + 15 $, the total cost $ f(x) $ consists of two parts: the hourly fee and the flat rate. The hourly fee is represented by $ 10x $, where $ x $ is the number of hours the bicycle is rented at a rate of $10 per hour. The term $ 15 $ in the function represents the flat rate, which is the cost charged regardless of how many hours the bicycle is rented. Therefore, the flat rate for the bicycle rental is **$15**.