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  1. Functions | Algebra 1 | Math | 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 graph, analyze, and create different types of functions. Unit guides are here! …

  2. 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.

  3. 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.

  4. Functions | Algebra (all content) | Math | Khan Academy

    This topic covers: - Evaluating functions - Domain & range of functions - Graphical features of functions - Average rate of change of functions - Function combination and composition - …

  5. Function rules from equations | Algebra (practice) | Khan Academy

    Create functions that match one variable to the other in a two-variable equation. Functions are written using function notation.

  6. Recognize functions from graphs - Khan Academy

    Determine whether a given graph represents a function.

  7. How to find the domain of a function (video) | Khan Academy

    Functions are defined within the real number system as this is what is used the majority of the time. We graph functions within the coordinate plane. Each number line in the coordinate …

  8. Equations vs. functions (video) | Functions | Khan Academy

    Equations and functions are not the same thing, but they can be related in several ways. Watch Jesse Roe and Sal talk about the difference between equations and functions.

  9. Functions & absolute value | Algebra 1 (FL B.E.S.T.) | Math | Khan …

    Graphs of absolute value functions Learn Shifting absolute value graphs Scaling & reflecting absolute value functions: equation

  10. Review: Functions (article) - Khan Academy

    There's another powerful thing we can do with functions - we can use them to take in some values, compute them, and return a new value. Think about all the things you can do with a …