Using Graphs to Show Information

Why use graphs? Have you ever wondered why we use graphs? What is it that a graph is telling you? Graphs are used for many different reasons, and can be found all over.

We see them in the newspapers,. magazines, and on television We see them in the newspapers, magazines, and on television because they help us to communicate information.

The types of graphs that we will be looking at are: Many different types of graphs exist, and each has something different about it that makes it useful in a unique way. The types of graphs that we will be looking at are: Line graphs Bar Graphs

Bar Graphs We can look at graphs and then draw conclusions or make predictions about them. A bar graph is used to show and compare data for different categories. Bar Graph

Vertical Axis: Shows number of students There are two axes(plural for axis) on each graph. The vertical axis runs up and down while the horizontal axis runs side to side. Both need to be labeled so that we know what they stand for. Vertical Axis: Shows number of students Horizontal Axis: Shows fruit

Each category has its own bar that is labeled in the graph Each category has its own bar that is labeled in the graph. The length of the bar shows the amount it is representing. Bar showing amount

A line graph is used to show how a variable has changed over time.

The horizontal axis represents the change in data. The vertical axis represents the amount of time the changes take place. Vertical Axis: Amount of time Horizontal Axis: The change