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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 | 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 - …

  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 | 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.

  5. 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 …

  6. Relations and functions (video) | Functions | Khan Academy

    So before we even attempt to do this problem, right here, let's just remind ourselves what a relation is and what type of relations can be functions. So in a relation, you have a set of …

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

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

  8. Cell structure and function | AP®︎/College Biology - Khan Academy

    Take your cellular knowledge to the next level! From organelles to membrane transport, this unit covers the facts you need to know about cells - the tiny building blocks of life.

  9. Graphs, attributes, and applications of functions - Khan Academy

    Functions come to life when we look at their graphs. In this unit, we’ll explore how features like symmetry, discontinuities, and intervals reveal deeper insights into function behavior.

  10. 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 …