On a recent trip, i took a cab from the airport to my hotel. these were the cab fares posted on the door of the cab: $2.20 for the first 1⁄2 mile and 30 cents for each additional 1/5 mile. how far did i travel if my fare was $17.20? what would my fare be if i were to travel 16.8 miles? what would my fare be if i were to travel n miles? what kind of relationship is this? justify your response and provide a visual representation (a graph) of the relationship.