5-2 (draft)

Select all the relations that represent a function.

• (3, 2), (2, 1), (3, 9), (4, 7)

• (1, 7), (2, 2), (3, 5), (4, 8)

• (2, 6), (6, 5), (3, 2), (5, 3)

• (4, 3), (3, 3), (2, 3), (1, 3)

• (2, 2), (2, 5), (2, 1), (2, 3)

Identify the domain of the relation given by the ordered pairs (11, 60), (12, 63), (12, 66), (13, 64), and (14, 67).

• {60, 63, 66, 64, 67}

• {11, 12, 13, 14}

• {11, 12, 12, 13, 14}

• {60, 63, 66, 64}

Select the correct description of the graph.

• function

• relation that is not a function

Select the true statement about the relation given by the ordered pairs (1, 5), (2, 1), (3, 7), (3, 2), (4, 6).

• The relation is not a function because the input 3 has two outputs.

• The relation is not a function because the points do not form a line.

• The relation is not a function because the output 3 has two inputs.

• The relation is a function.

Which of the following ordered pairs is not a function?

• (1, 2), (2, 3), (3, 4), (4, 5)

• (1, 2), (2, 2), (3, 2), (4, 2)

• (1, 2), (2, 3), (3, 4), (3, 5)

• (1, 2), (2, 3), (3, 4), (4, 4)

Which of the following is the domain of the relation (5, 6), (7, 8), (9, 10)?

• {5, 7, 9}

• {6, 8, 10}

• {5, 6, 7, 8, 9, 10}

• {6, 7, 8}

Which of the following is the range of the relation (5, 6), (7, 8), (9, 10)?

• {5, 7, 9}

• {6, 8, 10}

• {5, 6, 7, 8, 9, 10}

• {6, 7, 8}

Which of the following is the domain of the relation (2, 3), (4, 5), (6, 7)?

• {2, 4, 6}

• {3, 5, 7}

• {2, 3, 4, 5, 6, 7}

• {3, 4, 5}

Which of the following is the range of the relation (2, 3), (4, 5), (6, 7)?

• {2, 4, 6}

• {3, 5, 7}

• {2, 3, 4, 5, 6, 7}

• {3, 4, 5}

Which statement is true about the relation shown in the table?

• The relation is a function.

• The relation is not a function because 2 inputs have the same output.

• The relation is not a function because 2 outputs have the same input.

• There is not enough information to determine whether this relation is a function.