Identifying Functions, Domain, Range, Independent Dependent Variables

• Function
• Not a Function

Is the graph pictured a function?

• Yes

• No

Which set of ordered pairs is a function?

• <(9,5), (10,5), (9,-5), (10,-5)>

• <(3,4), (4,-3), (7,4), (3, 8)>

• <(6,-5), (7, -3), (8, -1), (9, 1)>

• <(2, -2), (5, 9), (5, -7), (1, 4)>

All of the x values are called what?

• Domain

• Range

• Relation

• Function

Which is the set of all y-values or the outputs?

• Domain

• Range

• Relation

• Function

What is the Domain?

• {-3, -1, 1, 3, 5, 7, 9}

• {-3, -2, -1, 0, 1, 2, 3}

• -3 ≤ x ≤ 3

• -3 ≤ x ≤ 9

What is the RANGE?

• {10,20,30,40}

• {15,25,25,45}

• {10,15,20,25,30,35,40,45}

• {10,25,30,45}

What is the domain and range of f(x)=15?

• Domain: All real numbers greater than or equal to 15

  Range: All real numbers

• Domain: All real numbers

  Range: {15}

• Domain: {15}

  Range: All real numbers

• Domain: All real numbers

  Range: All real numbers greater than or equal to 15

Name the INDEPENDENT variable from the table below.

• words

• minutes

In order to earn extra spending money, Dalton babysits children after school. The greater the number of hours he babysits, the more money he earns. h = the number of hours Dalton babysits m = the amount of money Dalton earns Which of the variables is DEPENDENT?

• h

• m