Question

What is the use of graphs?

Answer 1

Hint: Let us first find out what are graphs, then we will look at how they are useful for us and how we can use them. A graph is the defined term for a type of presentation.

Complete step-by-step solution:
Graph is the defined term for the presentation presented on a cartesian plane. As it is a mathematical representation used to represent the relation between two variables. One variable is represented in the x-axis and one is in the y-axis.
A graph consists of some points and lines between them. The length of the lines and position of the points do not matter. Each object in a graph is called a node.
Uses of Graph;
Graphs are a common method to visually illustrate relationships in the data. The purpose of a graph is to present data that are too numerous or complicated to be described adequately in the text and in less space.
While the use of graphs is also based on the subject, i.e. in physics, maths, chemistry and so on.
It is used to show the variation of a quantity with respect to another. A line graph represents two pieces of information that are usually related. It is useful when comparisons are needed. For example, these graphs are used to represent the changes in speed over a journey.
Graph theory is used to mathematically model molecules in order to gain insight into the physical properties of these chemical compounds. Some physical properties, such as the boiling point, are related to the geometric structure of the compound.
They help us to directly visualize the relation between two variables over a long space of time.
Some of the practical uses of graph data structures in real life: social graphs, knowledge graphs, recommendation engines, path optimization algorithms, scientific computations.

Note: Graphs are also further divided on the basis of its uses and where we use. Some of the types of graphs are; bar chart/graph, pie chart, line graph or chart, histogram chart, area chart, dot graph.