For Questions 3 and 4, identify a statement that describes the relationship. There may be more than one correct answer.

3. The cost, c, to download a certain number of songs, s, from a website is represented by the function c = 0.99(s – 10).

The total cost is a function of the number of songs that are downloaded.

The number of songs that are downloaded depends on the total cost of the songs.

The cost of downloading songs is dependent on the number of songs that are downloaded.

The independent variable, c, is equal to the product of 0.99 and the difference between the independent variable, s, and 10.

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4. An airplane can travel according to the equation d = 630h, where d represents the distance traveled and h represents the number of hours flown.

The independent variable, d, is equal to the product of 630 and the dependent variable, h.

The dependent variable, d, is equal to the product of 630 and the independent variable, h.

The distance traveled is a function of the number of hours flown.

The number of hours flown is a function of the distance traveled.

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