Functions Domain and Range

• Function
• Not a Function

Is this graph a function or not a function? 

• Function

• Not a Function

What is the domain of the graph shown?

• {-2, -1, 0, 1, 2, 3, 4}

• {2, 3, 4}

• 2 ≤ y ≤ 4

• -2 ≤ x ≤ 4

What is a function?

• A relation that maps every domain value to exactly one range value.

• A relation that maps every range value to exactly one domain value.

• Any set of ordered pairs.

• Any graph of x and y values.

the set of all possible x-values

• Domain

• Range

• Interval Notation

• Inequality Notation

the set of all possible y-values

• Domain

• Range

• Interval Notation

• Inequality Notation

When identifying domain and range what symbol(s) is used when the value is included?

• ( )

• [ ]

• < >

• { }

When identifying domain and range what symbol(s) is used when the value is not included?

• ( )

• [ ]

• ≤ ≥

• { }

What is the domain in Interval notation?

• [ -2 , 2 ]

• [ 4 , -4 ]

• (-2 , 2 )

• (4 , -4 )

What is the domain in interval notation?

• ( -5 , 5 )

• [-2 , -4 )

• -5 < x < 5

• -2 ≥ y > -4