SOLUTION: A car rental agency leases automobiles at a rate of $25 per day plus 0.07 per mile driven. If “y” equals the cost in dollars of renting a car for one day and “x” equals the

Question 1164635: A car rental agency leases automobiles at a rate of $25 per day plus 0.07 per mile driven. If “y” equals the cost in dollars of renting a car for one day and “x” equals the number of miles driven in one day:

i. Model the mathematical the function y=f(x) which expresses the daily cost of renting a car.
ii. What is f (375)?
iii. Comment on the restricted domain and range of this function.

Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
y=$25+$0.07x
f(375)=$25+$(0.7*375)=$51.25
domain is restricted to x being >0 (0, oo)
range is positive and greater than $25, the base cost regardless of the mileage, so long as it is >0. (25, oo)
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