Final answer:
Visualization is the act of representing mathematical ideas and relationships using objects, pictures, graphs, equations, or other methods.
Step-by-step explanation:
The act of representing or showing mathematical ideas and relationships using objects, pictures, graphs, equations, or other methods is known as visualization. This technique allows for a better understanding and interpretation of mathematical concepts by providing a visual representation of the data. For example, a line graph can illustrate the relationship between two variables, while a bar graph can show a comparison between different entities.