Question

lesson 12: basic charts and graphs line graphs how are multiple sources of data represented in a line graph? a. different - colored lines on different gridlines b. different - colored lines on the same gridlines c. different - colored bars on the same gridlines d. additional columns and/or rows

Explanation:

To determine how multiple data sources are represented in a line graph, we analyze each option:

• Option a: Using different gridlines for different - colored lines is not the standard way to represent multiple data sources in a line graph. Usually, multiple data series in a line graph share the same grid (axis) system for easy comparison.
• Option b: In a line graph, when there are multiple sources of data, we use different - colored lines plotted on the same gridlines (same set of axes). This allows for a direct visual comparison of the different data series over the same variable (e.g., time on the x - axis and a measured quantity on the y - axis).
• Option c: Different - colored bars are used in bar graphs, not line graphs. So this option is incorrect as it refers to a bar graph characteristic.
• Option d: Additional columns and/or rows are more related to tabular data representation (like in a table) rather than a line graph.

Answer:

b. Different - colored lines on the same gridlines