Question

what are the advantages disadvantages and purpose of using charts and graphs ​

Answer 1

The advantage to using graphs and charts is that they can display a lot of information is an easy to understand format. For example, a line graph is a great way to show trends over a period of time. You could put numbers in a table, but a line that is consistently going up is much more accessible at a quick glance.

Answer 2

Graphs it give correct value

Charts it give knowledge