# Function domain word problems

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
comma