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A car rental company charges $50 a day and 20 cents per mile for renting a car. Let y be
the total rental charges (in dollars) for a car for one day and x be the miles driven. The
equation for the relationship between x and y is:
= + .
a. How much will a person pay who rents a car for one day and drives it 100 miles?
b. Suppose each of 20 persons rents a car from this agency for one day and drives it 100
miles. Will each of them pay the same amount for renting a car for a day or do you
expect each person to pay a different amount? Explain.
c. Is the relationship between x and y exact or not exact?
