Sal explains what inverse functions are. Then he explains how to algebraically find the inverse of a function and looks at the graphical relationship between inverse functions.

Learn how to verify whether two functions are inverses by composing them. For example, are f (x)=5x-7 and g (x)=x/5+7 inverse functions? This article includes a lot of function composition. …

Practice Up next for you: Model with function combination Get 3 of 4 questions to level up!

Learn what the inverse of a function is, and how to evaluate inverses of functions that are given in tables or graphs.

Learn how to find inverse functions with step-by-step guidance and examples, enhancing your understanding of this fundamental algebra concept.

Logarithms are the inverses of exponents. They allow us to solve challenging exponential equations, and they are a good excuse to dive deeper into the relationship between a function …

Not all functions have inverses. Those who do are called "invertible." Learn how we can tell whether a function is invertible or not. Inverse functions, in the most general sense, are …

A function will map from a domain to a range and you can think of the inverse as mapping back from that point in the range to where you started from. So one way to think about it is, we want …

Properties of inverse trigonometric functions Properties of ITFs Proving identities involving ITFs Using Trig identities on ITFs

In the first inverse function video, I talked about how a function and their inverse-- they are the reflection over the line y equals x. So where's the line y equals x here?