Final answer:
Supporting details are specific facts, evidence, and examples that develop the author's point in a paragraph.
Step-by-step explanation:
The purpose of supporting details is to develop the author's point in a paragraph. Supporting details are specific facts, evidence, and examples that provide further explanation and strengthen the main idea of the paragraph. They help the reader understand and believe the author's argument or point of view. For example, if the main idea of a paragraph is that regular exercise is important for maintaining good health, supporting details could include statistics on the benefits of exercise, personal anecdotes, or expert quotes that support this idea.
Learn more about the purpose of supporting details