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# What Is a line graph?

A line graph is a type of graph that uses line segments to join data points. Line graphs are used to track changes over time or to compare different data sets. Keep reading to learn more about line graphs and how they are used.

## What Is a line graph?

A line graph, also known as a line chart, is a type of chart that shows how data changes over time. It has a horizontal axis (the x-axis) and a vertical axis (the y-axis). Points on the line chart are connected by lines. Line graphs are often used to show how something changes over time, such as stock prices or temperature. A line graph example might show you the rising and falling price of a particular security over a given period of time.

Line graphs can be used to show different types of data. For example, you could use a line graph to show how revenue has changed over time or how the temperature has changed over time. You can also use a line chart to compare two different sets of data. For example, you could use a line chart to compare the revenue from two different years.

## Where is a line graph useful?

As discussed, line graphs are useful for demonstrating data trends over a period of time. Simple line graphs can be used across a wide range of businesses and industries. For example, publicists, brand managers, or public relations specialists can use them to track a client’s social media ranking over time. Additionally, investors can rely on line graphs to track the health of their stocks and other financial interests. Finally, healthcare and public health professionals can use line graphs to get a comparison of disease trends over time.

Line graphs are used to track changes over short or long periods of time. When smaller changes exist, line graphs are better to use than other types of charts, such as bar graphs. Line graphs can also be used to compare changes over the same period of time for more than one group. They are useful for showing how different stocks, products, stores, promotions, or other things performed when compared to others.

## How do you interpret a line graph?

A line chart is one of the most commonly used types of graphs for data analysis, and it’s versatile enough to be used for a variety of data sets. It can show changes over time, comparisons between items, or relationships between different data sets. To interpret a line chart, you should first look at the title or axis labels to get an idea of what the graph is showing. Then, look at each individual line on the graph and try to determine what it represents. Often, there will be a key below the graph that explains what each line represents.

Once you understand what each line on the graph represents, try to identify any patterns or trends that might be happening. For example, if you’re looking at a graph that shows sales data over time, you might notice that sales have been increasing steadily over the past few years. Or, if you’re looking at a graph comparing two different data sets, you might see that they have a positive or negative correlation. Each rise or dip of a line on the chart indicates a change. Usually, a dip or valley on a line graph indicates a negative change or a decrease. Similarly, a rise or peak demonstrates an increase or a positive change.

## What are the limitations of line graphs?

A line chart is a great way to visualize data for businesses, but they have some limitations. First, line graphs can only show data that changes over time. Second, line graphs can be difficult to read if there are a lot of points on the graph. Third, line graphs can be difficult to create if there is a lot of data. Finally, line graphs can be difficult to compare if there are multiple lines on the graph.

Line graphs are a great way to visualize data that changes over time. They are easy to read and can show a lot of information at once. Altogether, line graphs are an important tool for gaining valuable data insights.