## Quadratic Sequences

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2 | 2 | 16 | 20 | 28 | 40 | 56 | 76 | n | n | |||

1 | Quadratic Sequences Questions | 1 | 1 | 13 | 15 | 19 | 25 | 33 | 43 | n | n | |

2 | 1. Find the nth term formula for the following quadratic sequence: 20, 28, 40, 56, 76 | 3 | 1 | 5 | 9 | 19 | 35 | 57 | 85 | n | n | |

3 | 2. Find the nth term formula for the following quadratic sequence: 15, 19, 25, 33, 43 | 3 | 3 | 15 | 21 | 33 | 51 | 75 | 105 | n | n | |

4 | 3. Find the nth term formula for the following quadratic sequence: 9, 19, 35, 57, 85 | 3 | 2 | 3 | 8 | 19 | 36 | 59 | 88 | n | n | |

5 | 4. Find the nth term formula for the following quadratic sequence: 21, 33, 51, 75, 105 | 2 | 1 | 3 | 6 | 13 | 24 | 39 | 58 | n | n | |

6 | 5. Find the nth term formula for the following quadratic sequence: 8, 19, 36, 59, 88 | 1 | 3 | 10 | 14 | 20 | 28 | 38 | 50 | n | n | |

7 | 6. Find the nth term formula for the following quadratic sequence: 6, 13, 24, 39, 58 | 2 | 1 | 4 | 7 | 14 | 25 | 40 | 59 | n | n | |

8 | 7. Find the nth term formula for the following quadratic sequence: 14, 20, 28, 38, 50 | 3 | 2 | 17 | 22 | 33 | 50 | 73 | 102 | n | n | |

9 | 8. Find the nth term formula for the following quadratic sequence: 7, 14, 25, 40, 59 | 2 | 1 | 16 | 19 | 26 | 37 | 52 | 71 | n | n | |

10 | 9. Find the nth term formula for the following quadratic sequence: 22, 33, 50, 73, 102 | 2 | 1 | 2 | 5 | 12 | 23 | 38 | 57 | n | n | |

11 | 10. Find the nth term formula for the following quadratic sequence: 19, 26, 37, 52, 71 | 2 | 1 | 14 | 17 | 24 | 35 | 50 | 69 | n | n | |

12 | 11. Find the nth term formula for the following quadratic sequence: 5, 12, 23, 38, 57 | 2 | 2 | 13 | 17 | 25 | 37 | 53 | 73 | n | n | |

13 | 12. Find the nth term formula for the following quadratic sequence: 17, 24, 35, 50, 69 | 2 | 3 | 10 | 15 | 24 | 37 | 54 | 75 | n | n | |

14 | 13. Find the nth term formula for the following quadratic sequence: 17, 25, 37, 53, 73 | 3 | 3 | 11 | 17 | 29 | 47 | 71 | 101 | n | n | |

15 | 14. Find the nth term formula for the following quadratic sequence: 15, 24, 37, 54, 75 | 1 | 2 | 11 | 14 | 19 | 26 | 35 | 46 | n | n | |

16 | 15. Find the nth term formula for the following quadratic sequence: 17, 29, 47, 71, 101 | 1 | 3 | 15 | 19 | 25 | 33 | 43 | 55 | n | n | |

17 | 16. Find the nth term formula for the following quadratic sequence: 14, 19, 26, 35, 46 | 2 | 3 | 3 | 8 | 17 | 30 | 47 | 68 | n | n | |

18 | 17. Find the nth term formula for the following quadratic sequence: 19, 25, 33, 43, 55 | 1 | 1 | 5 | 7 | 11 | 17 | 25 | 35 | n | n | |

19 | 18. Find the nth term formula for the following quadratic sequence: 8, 17, 30, 47, 68 | 3 | 1 | 2 | 6 | 16 | 32 | 54 | 82 | n | n | |

20 | 19. Find the nth term formula for the following quadratic sequence: 7, 11, 17, 25, 35 | 1 | 2 | 10 | 13 | 18 | 25 | 34 | 45 | n | n | |

21 | 20. Find the nth term formula for the following quadratic sequence: 6, 16, 32, 54, 82 | 1 | 2 | 7 | 10 | 15 | 22 | 31 | 42 | n | n | |

7 | 35 | |||||||||||

Quadratic Sequences Answers | 7 | 35 | ||||||||||

1. nth = 2n² + 2n + 16 | 11 | 55 | ||||||||||

2. nth = n² + n + 13 | 5 | 25 | ||||||||||

3. nth = 3n² + n + 5 | 7 | 35 | ||||||||||

4. nth = 3n² + 3n + 15 | 10 | 50 | ||||||||||

5. nth = 3n² + 2n + 3 | 11 | 55 | ||||||||||

6. nth = 2n² + n + 3 | 4 | 20 | ||||||||||

7. nth = n² + 3n + 10 | 10 | 50 | ||||||||||

8. nth = 2n² + n + 4 | 10 | 50 | ||||||||||

9. nth = 3n² + 2n + 17 | 5 | 25 | ||||||||||

10. nth = 2n² + n + 16 | 3 | 15 | ||||||||||

11. nth = 2n² + n + 2 | 10 | 50 | ||||||||||

12. nth = 2n² + n + 14 | 12 | 60 | ||||||||||

13. nth = 2n² + 2n + 13 | 11 | 55 | ||||||||||

14. nth = 2n² + 3n + 10 | 2 | 10 | ||||||||||

15. nth = 3n² + 3n + 11 | 11 | 55 | ||||||||||

16. nth = n² + 2n + 11 | 4 | 20 | ||||||||||

17. nth = n² + 3n + 15 | 9 | 45 | ||||||||||

18. nth = 2n² + 3n + 3 | 9 | 45 | ||||||||||

19. nth = n² + n + 5 | 4 | 20 | ||||||||||

20. nth = 3n² + n + 2 | 11 | 55 |