Final answer:
An author includes a graphic to illustrate concepts from the written text.
Step-by-step explanation:
An author of a scientific or technical text might include a graphic to illustrate concepts from the written text. Graphics, such as charts, diagrams, or illustrations, can help readers understand complex information more easily and visually. They can also provide additional visual evidence to support the author's claims or arguments.
Learn more about the importance of including graphics in scientific or technical texts