Help pls The function y = 3.25 + 2.5(x − 1) can be used to determine the total cost (y) of a taxi ride of x miles. What is the rate of change of the cost in dollars with respect to the number of miles?
A) $0.75 per mile
B) $2.50 per mile
C) $3.25 per mile
D) $5.75 per mile