
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
If we have a function with 2 inputs to create 1 output, we can graph in a 3 dimensional graph of (x, y, z). Once you go to even higher inputs, we typically would not graph them as we don't what a …
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)
Limits and continuity | Calculus 1 | Math | Khan Academy
Limits of combined functions: products and quotients Get 3 of 4 questions to level up!
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 …
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Function symmetry introduction (article) | Khan Academy
Another way to visualize origin symmetry is to imagine a reflection about the x -axis, followed by a reflection across the y -axis. If this leaves the graph of the function unchanged, the graph is …
Intro to invertible functions (article) | Khan Academy
To determine if a function is invertible, we need to decide if each input has a unique output. To do this, we can imagine passing a horizontal line through the graph of the function.
Limits intro (article) | Khan Academy
Limits describe how a function behaves near a point, instead of at that point. This simple yet powerful idea is the basis of all of calculus.
Rational functions (video) | Functions | Khan Academy
We break down the definition of the function given in set-builder form and plot the graph by connecting points on the cartesian plane. Domain and Range is calculated through visually …