Question

A pilot takes a taxi from the airport to a hotel. The taxi driver charges a $2.50 initial charge plus $2.65 per mile. Which equation can be used to find y, the total cost of the trip, if x represents the number of miles of the trip?

Answer 1

If x is the variable for the miles and y is the variable for the total cost then the equation would be 
y=2.65x(because it is "per mile") +2.50(flat fee)

Answer 2

X is the number of miles.
The per mile charge is $2.65 per mile, so for x miles, the per mile charge is 2.65x.
The fixed charge is the initial charge of $2.50.
The total charge is the fixed charge plus the per mile charge.

y = 2.50 + 2.65x