Question

The function y=3.75+1.5(x−1) can be used to determine the cost in dollars for a taxi ride of x miles. What is the rate of change of the cost in dollars with respect to the number of miles?

Answer 1

The rate of change of the cost in dollars with respect to the number of miles is the coefficient of x in the function, which is 1.5. Therefore, the rate of change of the cost is $1.50 per mile.