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

    Inputs and outputs of a function Learn Worked example: matching an input to a function's output (equation) Worked example: matching an input to a function's output (graph) Worked example: two …

  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

    Rearranging to solve for the variable you want to measure, you get a function (as long as there's not multiple outputs for any input)! Functions involve anything with an independent and dependent …

  4. Functions | Algebra 1 | 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. **Unit guides are here!** Power up your classroom …

  5. Quadratic functions & equations | Algebra 1 | Math | Khan Academy

    We've seen linear and exponential functions, and now we're ready for quadratic functions. We'll explore how these functions and the parabolas they produce can be used to solve real-world problems.

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

    Many functions are equations. But, they don't have to be. If you have a set of ordered pairs where each x-value relates to only one y-value, then you have a function. For example: { (2,5); (3,8); (5,7); (-3,6) …

  7. Linear equations, functions, & graphs | Khan Academy

    This topic covers: - Intercepts of linear equations/functions - Slope of linear equations/functions - Slope-intercept, point-slope, & standard forms - Graphing linear equations/functions - Writing linear …

  8. Exponential growth & decay | Algebra 1 | Math | Khan Academy

    What does it mean for something to change exponentially? Let's learn about a new family of functions, and use these exponential functions to analyze real-world scenarios.

  9. Examples finding the domain of functions - Khan Academy

    - [Instructor] In this video, we're gonna do a few examples finding domains of functions. So let's say that we have the function f of x is equal to x plus five over x minus two.

  10. Introduction to piecewise functions - Khan Academy

    Where ever input thresholds (or boundaries) require significant changes in output modeling, you will find piece-wise functions. In your day to day life, a piece wise function might be found at the local car …