# Functions

### Quizzes

1. |
Which of the following sets is NOT a relation?→{(A, B), (Q, Z)} |

2. |
What is the domain of the relation {(1, 2), (3, 4), (5, 6), (7, 8)}?→{1, 3, 5, 7} |

3. |
Which of the following ordered pairs is NOT in the relation described by the equation x^{2} + x – 6 = y^{2}?→(3, 0) |

4. |
Which of the following relations IS a function?→{(1, 0), (2, 0), (3, 0)} |

5. |
The following graph shows →the relation {(0, 1), (0, 2), (0, 3), (0, 4)} |

6. |
The following graph shows →False |

7. |
The graph shows a function. →About 77% true, 23% false |

8. |
The graph shows a function. →True |

9. |
The graph shows a function. →True |

10. |
The graph shows a function. →True |