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Book reviews, excerpts, author interviews, and news from our critics & contributors.

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Functions | Integrated math 1 | Khan Academy

In this unit, we learn about functions, which are mathematical entities that assign unique outputs to given inputs. We''ll evaluate, graph, analyze, and create various types of functions.

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Functions assign a single output for each of their inputs. In this video, we see examples of various kinds of functions.

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10 Best Books of 2025

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About this unit A function is like a machine that takes an input and gives an output. Let''s explore how we can graph, analyze, and create different types of functions. Unit guides are here!

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Seen & Unseen''s top 10 book reviews of 2025 | Seen & Unseen

Jonathan Sanchez on Unsplash. In the next of a series of Top 10 countdowns, the spotlight falls on Seen & Unseen''s book reviews. Wondering where Graham Tomlin and Belle

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Kirkus Reviews

Book reviews, recommendations, and the latest literary news from the most trusted voice in book discovery, Kirkus Reviews

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Functions | College Algebra | Math | Khan Academy

A function is like a machine that takes an input and gives an output. Let''s explore how we can graph, analyze, and create different types of functions.

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Functions | TG Math Class 11 | Khan Academy

Types of Functions Learn Surjective (onto) and injective (one-to-one) functions Identity and constant functions

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Book Reviews

Book reviews of fiction, novels, and nonfiction books. The US Review of Books is a leading book review publication and website, including example book reviews.

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