# Sequences

### Quizzes

1. |
An arithmetic sequence is a sequence where -> the difference of successive terms is constant. |

2. |
The sequence -1, -1, -1, -1,... is -> both arithmetic and geometric |

3. |
The sequence 0, -3, -6, -9, ... is -> arithmetic only. |

4. |
The sequence 60, -30, 15, -7.5,... is -> geometric with |

5. |
An arithmetic sequence has a_{1} = 5 and d = 9. What is a_{25}? -> 221 |

6. |
An arithmetic sequence has a_{11} = 4.54 and a_{20} = 9.04. Find a_{1} and d. -> d = 0.5 and a_{1} = -0.46 |

7. |
A geometric sequence has a = 100,000 and r = 0.2. Find a_{10}. -> 0.0512 |

8. |
A geometric sequence has a_{5} = c and a_{10} = d. Which of the following is true? -> |

9. |
In a geometric sequence, the general term is given by -> a = _{n}a_{1}r^{n + 1} |

10. |
An arithmetic sequence has a_{8} = 9.5 and a_{9} = 9.75. What is a_{2}? -> 7.75 |