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# Chapter 6 Vocabulary

### Math vocabulary

Term | Definition |
---|---|

Square Root | If b2 = a then b is a square root of a.The radical sign,represents a nonegative square root. |

Radical sign | The symbol which is used to represent a square root. |

Radicand | The number or expression under a radical sign. |

Square Root Equation | An equation that contains a square root with a variable in the radicand. |

Closed | A set of numbers is closed under an operation when the operation performed on any two numbers in the results in a number that is also in the set. |

n th Root | When bn=a for an integer n greater than 1,b is an nth root of a. |

Exponiental function | A function of the form y=abx,where a =/0,b=/1,and b>0. |

Exponential growth | When a quantity increases by the same factor over equal intervals of time. |

Exponential Growth Function | A function of the form y=a(1+r)1,where a>0 and r>0. |

Compound Interest | |

Exponential Decay | when a quantity decreases by the same factor over equal intervals of time. |

Geometric Sequence | |

Common ratio | |

Recursive Rule |

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Douglas Adams