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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. 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 - …

  4. Rational functions (video) - Khan Academy

    What are rational functions? How do we plot them? What is their domain and range? Let's find out. We break down the definition of the function given in set-builder form and plot the graph …

  5. 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.

  6. How to find the range of a function (video) | Khan Academy

    The range of a function is the set of all possible outputs the function can produce. Some functions (like linear functions) can have a range of all real numbers, but lots of functions have a more …

  7. Functions | Algebra 1 (Illustrative Mathematics-aligned) - Khan …

    Using function notation to describe rules (part 1) Learn Worked example: Evaluating functions from equation

  8. Functions (video) | Function definitions | Khan Academy

    Learn how to use functions to package a block of code and parameters to generalize it. Learn how to write your own function definitions, and explore how the computer executes a function call.

  9. Cell parts and functions (article) | Khan Academy

    Review your understanding of cell parts and functions in this free article aligned to NGSS standards.

  10. Compositions and inverses of functions | Khan Academy

    This unit explores how functions interact through composition and inversion. You'll learn how to find and represent inverse functions, restrict domains to ensure functionality, and use …