# Often asked: What is a line graph?

## What is meant by line graph?

A line graph (also known as a line plot or line chart) is a graph which uses lines to connect individual data points that display quantitative values over a specified time interval. Used across many fields, this type of graph can be quite helpful in depicting the changes in values over time.

## What is a line graph used for?

Line graphs are used to track changes over short and long periods of time. When smaller changes exist, line graphs are better to use than bar graphs. Line graphs can also be used to compare changes over the same period of time for more than one group.

## What is a line graph look like?

The line graph consists of a horizontal x-axis and a vertical y-axis. Each axis is labeled with a data type. For example, the x-axis could be days, weeks, quarters, or years, while the y-axis shows revenue in dollars. Data points are plotted and connected by a line in a “dot-to-dot” fashion.

## What does a line graph tell us?

A line graph is commonly used to display change over time as a series of data points connected by straight line segments on two axes. Line graphs are useful in that they show data variables and trends very clearly and can help to make predictions about the results of data not yet recorded.

## What are the five parts of a line graph?

The following pages describe the different parts of a line graph.

• The Title. The title offers a short explanation of what is in your graph.
• The Legend. The legend tells what each line represents.
• The Source. The source explains where you found the information that is in your graph.
• Y-Axis.
• The Data.
• X-Axis.
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## What are the types of line graph?

There are 3 main types of line graphs in statistics namely, a simple line graph, multiple line graph, and a compound line graph. Each of these graph types has different uses depending on the kind of data that is being evaluated.

## When should you use a line chart?

When to use line charts

1. Use line charts only if you want to show how values develop over time.
2. Line charts work to show how different categories stand to each other (e.g. to show that one category overtook another one).
3. Line charts work really well for a high number of values or values with different time intervals.

## What is the line on a graph called?

Glossary and Terms: Graphs and Lines. Abscissa – The horizontal line, or x-axis, of a graph. Axis – One of the lines that is used to form a graph. There is the horizontal x-axis and the vertical y-axis in a two dimensional graph.

## How do you read a line graph?

To read the graph, we look at the x axis to find one part of what we are looking for. We then draw an imaginary line straight up. We look for the actual line to see where it crosses our imaginary line.

## Is a zigzag line a function?

The zig-function is a periodic kink function

The points of the graph in which the slope changes from 1 to -1 or from -1 to 1 are called the kink points. In the case of zig, the kink points are (0, 1) en (2, -1).

## How do you plot a line on a graph?

To plot a point, just click on the graph with your left mouse button. To draw a line, hold down the left mouse button at one point on the line and drag the pointer to another point on the line. When you let go of the button the line will appear and it will automatically cross the whole graph.

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## How do you plot a line?

The first step is to make sure that the equation of the line is in the Slope-Intercept Form, that is y = m x + b y=mx+b y=mx+b. Start by plotting the y-intercept which is (0,b). Find another point using the slope m with the y-intercept at the reference point. Connect the two points with a ruler.

## How does a line graph work?

How does a line graph work?

1. First, we measure the value of something we want to keep track of at different points in time.
2. Once we have lots of these measurements, we plot those points on our graph, and then draw a line that connects those points, to make it easier to see how those values rose, fell, or stayed the same over time.

## What must a line graph have?

A line graph has two axes. The x-axis of a line graph shows the occurrences and the categories being compared over time and the y-axis represents the scale, which is a set of numbers that represents the data and is organized into equal intervals. It is important to know that all line graphs must have a title.