In Exercises , formulate the linear or piecewise linear model for the real-life scenario....

In Exercises , formulate the linear or piecewise linear model for the real-life scenario. If a linear model represents a directly proportional Relationship between the independent and dependent variables, so state.

 Airline Ticket Cost The total cost of an airline ticket includes the published fare, a federal flight segment tax, a federal security fee, and an airport Passenger Facility Charge (PFC). The flight segment tax is $3 on each segment of the itinerary. (A segment is a takeoff and landing.) The PFC varies from airport to airport; it ranges from $3 to $4.50, and it is imposed by an airport on enplaning passengers. When a passenger is departing from or connecting at any airport, that airport’s PFC will apply in addition to the fare. Likewise, a $2.50 security fee is imposed on all enplaning passengers.

A Southwest Airlines refundable airline ticket from Seattle to Phoenix is advertised at $222. Write the maximum total cost of a Southwest (Source: www.southwcst.com.) airline ticket from Seattle to Phoenix as a function of the number of segments. (Assume that a passenger travels exactly one segment per airplane. That is, if the plane stops, the passenger changes planes.)