The cost, c(x), for a taxi ride is given by c(x) = 2x + 3.00, where x is the number of minutes. what does the slope mean for this situation? a. the rate of change of the cost of the taxi ride is $3.00 per minute. b. the rate of change of the cost of the taxi ride is $2.00 per minute. c. the taxi ride costs a total of $3.00. d. the taxi ride costs $2.00 per trip.