A train travels at a steady rate of 80 mph. If the train travels for one-half hour nonstop, what are the domain and range of the

Question

Lelechka [254]

3 years ago

9

A train travels at a steady rate of 80 mph. If the train travels for one-half hour nonstop, what are the domain and range of the

distance function during the trip?

Mathematics

1 answer:

alukav5142 [94] · Answer 1 · 2022-03-08T14:25:02+03:00

The independent variable is time, which varies from 0 to 0.5, so domain = [0,0.5].
The distance travelled is the dependent variable, varying from 0 to (1/2)80=40 km. The range is therefore [0,40].

Note: in interval notation, a square bracket means that the value is included in the interval.