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What is a function? (video) | Functions | Khan Academy
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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Explora funciones algebraicas con lecciones y ejercicios gratuitos en Khan Academy. Mejora tus habilidades matemáticas de manera interactiva y accesible.
Introduction to functions | Algebra 1 (TX TEKS) - Khan Academy
About this unit A function is like a machine that takes an input and gives an output. Let's explore how we can create, graph, and analyze different types of functions. Unit guides are here! Power up your …
Evaluate functions | Algebra (practice) | Khan Academy
Evaluate functions for specific inputs given the formula of the function. Functions are written using function notation.
可汗学院 | 可汗学院 - Khan Academy
可汗学院提供代数函数相关的课程和练习，帮助学生掌握代数知识。
Khan Academy | Khan Academy
Khan Academy's Algebra 2 course offers a comprehensive, engaging, and Common Core aligned learning experience covering advanced algebra topics for high school students.
Evaluating composite functions (video) | Khan Academy
Sal evaluates (h⚬g)(-6) for g(x)=x²+5x-3 and h(y)=3(y-1)²-5.
Khan Academy | Khan Academy
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Intro to invertible functions (article) | Khan Academy
Not all functions have inverses. Those who do are called "invertible." Learn how we can tell whether a function is invertible or not.