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?
$4.25 per mile
$1.50 per mile
$3.75 per mile
$5.25 per mile
1 answer
The rate of change of the cost in dollars with respect to the number of miles is the coefficient of x in the equation, which is 1.5. Therefore, the rate of change of the cost in dollars per mile is $1.50 per mile.