A graph is a visual representation of data that helps to illustrate relationships between different variables. It typically consists of two axes: the horizontal axis (x-axis) and the vertical axis (y-axis). Each point on the graph represents a specific data value, making it easier to identify trends, patterns, and comparisons. Common types of graphs include line graphs, bar graphs, and pie charts. Graphs are widely used in various fields, including science, business, and education, to present information clearly and effectively. They can help in making decisions, analyzing performance, and communicating complex data in a more digestible format. By using graphs, people can quickly grasp important insights from the data.