Question

Phil is keeping track of his time as he runs. For each mile he passes he writes

his time down in minutes. The times are listed as (1, 6.25)(2,13.5)(3, 21)(4, 28).
What is the domain and the range for this problem?

A) Domain{1,2,3,4} Range{1,2,3,4}
B) Domain{1,2,3,4} Range{6.25,13.5,21,28}
C) Domain{6.25,13.5,21,28} Range{1,2,3,4}
D) Domain{1,6.25,2,13.5) Range{}

Answer 1

The domain for this problem is {1,2,3,4} and the range is {6.25,13.5,21,28}.

Step-by-step explanation:

The domain is the set of input values, in this case the mile numbers.

The range is the set of output values, in this case the time in minutes.

Looking at the given times, we can see that the domain is {1,2,3,4} and the range is {6.25,13.5,21,28}.

Therefore, the correct answer is B) Domain{1,2,3,4} Range{6.25,13.5,21,28}.