What is the BEST use of a line chart?
A. to represent a portion of the whole
B. to show the relationship between two variables
C. to display changes over time
D. to demonstrate rankings
C. to display changes over time
Line charts are most commonly used to display trends and changes over time. They are effective at showing how a variable has changed over a period of time, making them ideal for tracking progress, identifying patterns, and making comparisons.