To find the domain and range of the function from the graph:

1. Domain: The domain refers to the possible values of the input variable, which is time (days) on the horizontal axis.

   • From the graph, the time starts at 0 days and extends to 60 days. Therefore, the domain is:
     $0 \leq x \leq 60$ where $x$ represents time in days.

2. Range: The range refers to the possible values of the output variable, which is the length of the road (in kilometers) on the vertical axis.

   • From the graph, the length of the road starts at 60 kilometers and increases to 240 kilometers. Therefore, the range is:
     $60 \leq y \leq 240$ where $y$ represents the length of the road in kilometers.

Would you like more details or have any questions on this?

Here are some related questions:

1. What does it mean if the domain is "all reals" in a function?
2. How can we represent the domain and range on a number line?
3. How do we determine domain and range from a table of values?
4. What happens if the graph has breaks or undefined points?
5. Can a function have a limited domain but an infinite range?

Tip: The domain represents all valid inputs (x-values), while the range represents all possible outputs (y-values) from the function.