Question

Jennie rides her bike 12 miles per hour on a trail in the park. The trail is 18 miles long. The function, f, can be used to determine the number of miles biked after t hours. What is the domain and range?

Answer 1

• domain: [0, 1.5]
• range: [0, 18]

Explanation:

Jennie will complete her ride after 1.5 hours, so the function has no utility except for time values between 0 and 1.5 hours.

The domain is the interval [0, 1.5] (hours).

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The range of the function is the set of possible distances along the trail, so will be values between (and including) 0 and 18 miles.

The range is the interval [0, 18] (miles).