4 Several airlines fly from Dallas, Texas, to New York, New York. Depending on a variety of
factors such as the type of aircraft or weather conditions, airplanes fly at different
speeds. The table shows the length of time that the flight takes at different speeds.
2
2.5
2.75
3
3.5
4
TIME (HOURS)
SPEED
(MILES PER HOUR)
685
548
498
457
391
343
1370
A. Identify the domain and range of the data set and the domain and range of the function st)
B. How do the domain and range of the data set compare to the domain and range of the function?
C. What are the reasonable parts of the domain and range of the function for which the model, s(t), is useful?