math 9 term 1 week 3

Describing a set or group that has a limited, countable number of elements. It has a definite beginning and end

Finite

Describing a set or group that goes on forever without end. Its elements cannot be fully counted because they are unlimited

Infinite

A specific type of set that contains exactly one element.

Singleton

A set that contains absolutely no elements at all.

Null

The total number of elements contained within a set

Cardinality

A collection of ordered pairs (x, y) that links elements from one set to elements of another set. It establishes a connection, but has no strict rules about mapping.

Relation

A strict type of relation where every single input maps to exactly one output. An input cannot branch out to two different results.

Function

The independent variable (usually x) that you feed into a math relation or function to start the process.

Input

The collection of all possible inputs

Domain

The dependent variable (usually y or f(x)) that results from processing the input.

Output

The collection of all actual outputs

Range