A bike rental business currently rents out an average of 40 electric bikes per day. An industry journal says that, for every $2.

6. A bike rental business currently rents out an average of 40 electric bikes per day. An industry journal says that, for every $2.50 price rise, the average business can expect to lose two rentals per day. This being the case, the overall revenue for the business can be modelled using the equation below:

R = -5x