Final answer:
To set up the vertical axis of a line chart, define the minimum bound at 15,000 and the maximum at 40,000, including units if applicable, and ensure the scale chosen allows for easy interpretation of the data.
Step-by-step explanation:
Setting Up a Line Chart's Vertical Axis
To set up a line chart with the appropriate scale, define the vertical axis by establishing the minimum and maximum bounds of the dataset. For your line chart, set the minimum bound at 15,000 and the maximum bound at 40,000, without including a currency symbol. Label the x-axis as Time (min), and set a scale that includes all the desired data—in this case, marking every 10 minutes up to 70 minutes.
When labeling the y-axis, no unit is specified, but if data pertains to measurement, include the appropriate unit in parentheses. Select a scale for the y-axis that starts and ends with numbers that encompass all data points, as previously mentioned, from 15,000 to 40,000, considering an appropriate scale that facilitates easy reading and interpretation of data trends.
After labeling and scaling your axes, you can begin plotting data points. For example, locate the point where the 10 min mark meets 22 km (or the equivalent value on your y-axis), and place a dot there. Continue this process for each data point. This lets you visualize the data and trend lines distinctively.
It is important to choose a scale with significant figures appropriate to the precision of your data. By ensuring the axis values are coarser than the data's significant figures, you enhance the graph's clarity. For instance, if your data values are recorded to the nearest 10, the axis intervals could be marked in hundreds.