To determine the best scale for representing the data on the x-axis, we need to consider the total duration of the snowfall event.
- The snowfall occurs over the following periods:
- First 2 hours at a rate of 1 inch per hour.
- Stops for 1.5 hours.
- Resumes for 3 hours at a rate of 1.5 inches per hour.
Adding those periods together:
- 2 hours (initial snowfall)
- 1.5 hours (no snowfall)
- 3 hours (resumed snowfall)
Total duration = 2 + 1.5 + 3 = 6.5 hours.
Given the total duration, a suitable scale for the x-axis should be able to represent time intervals efficiently. The options provided are:
- 5
- 0.5
- 2
- 3
Since the total duration is 6.5 hours, using a scale that allows multiples of hours such as 2 hours or 3 hours could work well. However, the best fit for a clear representation across this time frame would be 1-hour intervals, but it isn’t listed among the options.
Among the options, "2" (2-hour increments) would allow for the total period to be easily displayed while keeping the representation clear.
So, the best choice for a scale on the x-axis would be 2.