
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! …
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 …
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 - …
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.
Worked example: Evaluating functions from equation
The function notation allows us to specify what function and input(s) we are using in math statements, making things more orderly and concise especially when you are dealing with …
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 …
Evaluate functions | Algebra (practice) | Khan Academy
Evaluate functions for specific inputs given the formula of the function. Functions are written using function notation.
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 …
Worked example: evaluating piecewise functions - Khan Academy
A piecewise function is a function that is defined in separate "pieces" or intervals. For each region or interval, the function may have a different equation or rule that describes it. We can …
Nonlinear functions | Lesson (article) | Khan Academy
A function takes an input and produces an output. In function notation, f (x) , f is the name of the function, x is the input variable, and f (x) is the output.