Relation and Function

• Relation is a set of ordered pairs
• The first coordinates are also called domain and input
• The second coordinates are also called range and output
• What are the 3 representation of relations?


  Graph

  Table of Values

  Mapping Diagram
• What are the 3 kinds of relation?

  One to one

  Many to one

  One to many
• Function is when each element in the domain is repeated once in an element on the range
• Vertical line test is a test where if the vertical line only passes through one point