key term - Inverse Functions

Definition

Inverse functions are two functions that "undo" each other. When you apply one function and then the inverse function, you get back to where you started.

Related terms

Composition of Functions: This term refers to combining two or more functions into a single function by applying one after another.

Domain and Range: These terms refer to the set of all possible input values (domain) and output values (range) for a given function.

Horizontal Line Test: This test is used to determine if a function has an inverse by checking if any horizontal line intersects the graph at more than one point.