L4-U2-P3 graphs & charts🔱图形图

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