A bar graph uses rectangular bars of different lengths to show and compare data
The lengths of the bars are proportional to the values they represent
The bars can be vertical，Up and down，or horizontal
A circle graph ，often called a pie graph is shaped like a circle
It is diveded into segments that look like pieces of a pie
Percentages are used to compare the segments，which are ordered from biggest to smallest
Line graphs are used to show the relationship between two variables such as time and distance
These variables are plotted on 2 axes，the x-axis and the y-axis
The x-axis often shows time while they y-axis shows how quantities，such as distance，temperature or profits change with time
A flowchart is a type of graph that shows how a process or project flows from start to finish
A flowchart consists of startpoints inputs，outputs and decision points
An organizational chart，or org chart shows the structure of a company
It shows how people and departments within a company are connected
It defines the roles and responsibilities of people and departments within s company
Line graphs arw very good at showing how things change over time
In a flowchart，a decision point shows that happens when a decision is made
