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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. 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.

  4. 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.

  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. 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.

  7. Introduction to piecewise functions - Khan Academy

    But what we're now going to explore is functions that are defined piece by piece over different intervals and functions like this you'll sometimes view them as a piecewise, or these types of …

  8. Exponential & logarithmic functions | Algebra (all content) | Khan …

    This topic covers: - Radicals & rational exponents - Graphs & end behavior of exponential functions - Manipulating exponential expressions using exponent properties - Exponential …

  9. Transformations of functions | College Algebra - Khan Academy

    Once we know a handful of parent functions, we can transform those functions to build related functions. Geometry swoops in as we translate, reflect, and dilate the graphs, working back …

  10. Rational functions, equations, and inequalities | Khan Academy

    Rational functions model relationships defined by ratios of polynomials, often capturing complex behavior such as asymptotes and discontinuities. In this unit, you’ll analyze their key …