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Learn about inverse functions with Khan Academy's free, world-class educational resources.
Intro to inverse functions. Inputs & outputs of inverse functions. Graphing the inverse of a linear function. Evaluate inverse functions. Finding inverse functions: linear. Finding inverses of linear functions. Functions: FAQ. >. >.
Learn about the concept of inverse functions and how to determine them.
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Inverse functions, on the other hand, are a relationship between two different functions. They can be linear or not. The inverse of a function basically "undoes" the original. As a simple example, look at f (x) = 2x and g (x) = x/2. To see what I mean, pick a number, (we'll pick 9) and put it in f. f (9) = 2 (9) = 18.
Problem. What is the inverse of the function h (x) = 3 − x x + 1 ? h − 1 (x) =. Report a problem.
The chain rule tells us how to find the derivative of a composite function. This is an exceptionally useful rule, as it opens up a whole world of functions (and equations!) we can now differentiate. Also learn how to use all the different derivative rules together in a thoughtful and strategic manner.
Learn how to find the inverse of a function and how to graph it in this video. The inverse function swaps the x and y values of the original function, and the graph of this inverse function is a reflection of the original function about the line y=x.