# Graphing and Types of Graphs

Pie Graph

A pie graph is a circle divided into sections which each display the size of a relative piece of information. Each section of the graph comes together to form a whole. In a pie graph, the length of each sector is proportional to the percentage it represents. Pie graphs work particularly well when each .slice. of the pie represents 25 to 50 percent of the given data.

Bar Graph

The bar graph is a common type of graph which consists of parallel bars or rectangles with lengths that are equal to the quantities that occur in a given data set. The bars can be presented vertically or horizontally to show the contrast and record information. Bar graphs are used for plotting discontinuous (discrete) data. Discrete data contains discrete values and are not continuous.

Line Graph

A line graph displays information in a series of data points that each represents an individual measurement or piece of data. The series of points are then connected by a line to show a visual trend in data over a period of time. The line is connected through each piece chronologically.

• How to Draw a Line Graph: Learn how to draw a line graph with visual images of each step.
• Line Graph Lesson Plan: Example related lesson plan on how to draw and solve problems using line graphs.
• Graph a Line: Tool used for graphing lines by filling in Y and X values to plot the points.
• Advantages of Using Line Graphs: Examples and information regarding the benefits of using line graphs.
• Excel Tutorial: Learn how to draw a line graph in Excel with this step-by-step tutorial.
• How to Construct a Line Graph: Instructional guide on how to draw a standard line graph.
• What.s a Line Graph: Learn what a line graph is, what it does, who uses it and why they are used.
• Math Worksheets: Printable math worksheets for bar graphs, line graphs and pie graphs.
• Line Graphs: Information on line graphs with a self-help quiz on the subject of line graphs to practice what you.ve learned.
• Tutorial Video: Learn how to create a line graph with a video that takes you through each step of the process.

Area Graph

An area graph is based on a line chart and displays quantitive data in the form of a graph. The area between the line and the axis is typically separated with textures or colors. Each area segment of an area graph is stacked on each other so that the total area of each category reflects the data. Each series of data is presented by a colored segment.

XY Graph

XY graphs are typically used to plot and display data pairs which consist of two separate values, the X-value and the Y-value. Each data pair represents information from given data and displayed as a symbol. The values are combined into single points and displayed in uneven clusters or intervals.