Use information about a situation to figure out the domain of the function which models it.

Problem

Tanya walked for 17 minutes from her home to a friend that lives 1, point, 5 kilometers away.
Let d, left parenthesis, t, right parenthesis denote Tanya's remaining distance to walk d (measured in kilometers), t minutes since she left home.
Which number type is more appropriate for the domain of the function?
Please choose from one of the following options.
Define the interval of the domain.
space
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, p, i or 2, slash, 3, space, p, i
comma
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, p, i or 2, slash, 3, space, p, i