A Plus taxi service charges 6 initially and 2 per mile Luxury taxi service charges 4 initially and 2 50 per mile If x the number of miles and y the cost of each taxi cab fare which system of the graphs below best represents the situation Cost 18 16 14 K 12 10 8 6 22 20 2258 18 16 14 12 10 8 6 22 20 18 16 14 12 10 8 6 4 2 22 20 18 16 14 12 10 6 Cost N Cost Cost C 23 16 11 miles 56 78 no 8 milos the following milos les