How do you determine an author's purpose in informational text?

• A. Look for clues in thesis, evidence, tone, and intended audience (to inform, explain, persuade, or entertain).
• B. Guess the author's favorite color.
• C. The length of the piece determines the purpose.
• D. The title alone reveals the purpose.

Answer: (A)

Understanding an author's purpose in informational text comes from looking at clues in the writing itself—especially the thesis or main claim, the evidence used to support it, the tone, and who the author assumes will read it. By checking these elements, you can tell whether the writer wants you to know facts, understand how or why something works, be persuaded to a viewpoint or action, or simply be engaged while learning.

If the text mainly presents facts, definitions, and explanations and shows how things work through evidence, the purpose is to inform or explain. If the writing argues a point and tries to convince you to think or act a certain way, it’s aiming to persuade. An occasional lighter or more engaging style can indicate an entertaining element, but in informational text the core aim is still clear from how the information is presented and supported.

Context helps you see this clearly: the thesis states the main idea, the evidence backs it up, the tone feels neutral, formal, or persuasive, and the intended audience affects how the author chooses details and explanations. The other ideas aren’t reliable guides: guessing something as arbitrary as the author’s favorite color, or judging purpose by length, or relying only on the title, won’t accurately reveal what the writer intends to achieve.