Two competing airlines make a new marketing plan, charging passengers a fixed amount and then a rate per mile flown.
Cheapo Air: $9.95 plus $0.55 a mile
Discount Airways: $99.95 plus $0.40 a mile
A one-way flight from New Orleans to Dallas is 506 miles.
Part A: If C is the cost of the flight and M is the number of miles flown one way, write the equation for each airline.
Part B: Using complete sentences, explain which airline has the cheaper option. Justify your answer.