Relations and Functions

What is a relation?

• A set of y values

• A set of ordered pairs

• A set of dependent variables

• A set of functions

What is the domain of this relation?

• {-6, 3, 11, 8}

• {-6, -3, -6, 3}

• {5, 8, 9, 11}

What is the range of this relation?

• {0.8, 1.2, 3.5}

• {-0.8, 0, 4}

• {0.8, -0.8, 0, 4}

What is the range of a relation?

• the x-value

• The set of all second coordinates of the ordered pair

• the dependent variable

How many ways can relations be express?

• 1

• 3

• 2

• 4