basic mathematics image
 basic mathematics image

Types of graphs


There are many types of graphs.Learning to read and create graphs is a very useful skill



In this unit, you will learn about pictographs, bar graphs,double bar graphs,line graphs, and circle graphs.

Let us start with pictographs:

A graph is a visual way to display information.

A pictograph is a graph that uses pictures or symbols to display information.

The pictures in a pictograph usually represent more than one item.

The following is a pictograph:

pictographs-image


The graph above has a title and a scale. Let say that the circles were drawn by David, Peter, John, Brown, and Jennifer.

The title is "number of circles drawn"

The scale used is the following: one circle represents 5 circles.

David drew 15 circles since we have 3 circles and each circle represents 5 circles.

John drew 7.5 circles. How did we get 7.5?

Note that if a circle represents 5 circles, half a circle will represent 5/2 circles or 2.5 circles.

Add 5 circles to 2.5, give 7.5

Exercise:

Construct a pictograph with the following table:

pictographs-image


Here is the pictographs:

pictographs-image





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