Actually, they are useful. At least in some cases.
Graphs are contained under graph theory
Economics uses lots of models to convey economic theory. The use of graphs helps present this information and the relationships within it. Graphs can also be used to extrapolate and interpolate the information and make estimations of values.
The answer is numbers
numbers
graphs can be helpful because you can create graphs and you can plot numbers on them. They help you find so many different things ! an example is if i have the numbers 1,2,3,4,5,6 you can plot these numbers on a graph. It can also show a change, or record something for a amount of time.
kind of although if you are dealing with large numbers a bar graph is better pictographs are easier to follow and understand
Any kind of properly drawn graph does. That's what graphs do.
Bar graphs, pie charts, and even line graphs can all be used to compare. I personally like to use Bar graphs when showing numbers.
graphs are used to organize data and numbers
A curve
pie graph I suggest the best graph to show percentage is a circle graph because bar graphs are for numbers and lnie is way off. Pie graphs are made for percentage.