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Understanding line graphs

publish date: 2026/05/26 10:58:32.450005 UTC

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A line graph is used to show how a quantity changes over time. Which of the following best describes what we can read from a line graph?

We can see when a quantity is increasing and when it is decreasing.

We can only see the total amount at the end of the time period.

We can only compare two different quantities at one fixed time.

We can see the exact formula that produced the data.

Correct Answer

We can see when a quantity is increasing and when it is decreasing.

Explanation

A line graph shows how a quantity changes with time. By looking at whether the graph rises, falls, or is horizontal as we read from left to right, we can tell when the quantity is increasing, decreasing, or staying the same.

Reference

Mathematics for college students

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