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# Morris A2C1

### Morris Alg 2 Chap1 Vocab

Question | Answer |
---|---|

Variable | ... is a symbol that can be replaced by any set of numbers or other objects. |

Algebraic Expression | Numbers and variables combined with operators |

Algebraic Sentence | Algebraic expressions connected with a verb (=,<,>...) |

Equation | A sentence stating 2 expressions are equal. |

Formula | An equation stating that a single variable is equal to an expression with one or more different variables on the other side. |

Dependent Variable | A variable whose value always depends on the value(s) of another variable. |

Independent Variable | A variable upon whose value other variables depend. |

A Function | ...is a pairing between two variables such that the value of the first variable corresponds to exactly one value of the second variable. |

Domain | Allowable values for the x(first) variable. |

Range | Allowable values for the y(second) variable. |

Input | The values of the independent variable. |

Output | The values of the dependent variable. |

Natural numbers | {1, 2, 3, 4, 5, ...} Also called counting numbers. |

Whole numbers | {0, 1, 2, 3, 4,...} |

Integers | {...-3, -2, -1, 0, 1, 2, 3, ...} |

Rational numbers | The set of numbers represented by a fraction or ratio. |

Real Numbers | The set of all numbers that can be written as decimals. |

Function (2) | A relation in which no two different ordered pairs have the same first coordinate. |

Relation | Any set of ordered pairs. |

Pitch | The measure of the steepness of the slant of the roof. P = R/(.5S) |

Term | Each number in a sequence. |

Subscript | A value or variable written below and to the right of a variable. Also called an index. |

Index | It indicates the position of the term in the sequence. Also called a subscript. |

Sequence | An ordered list. |

Recursive formula/definition | A set of statements that indicates the first term (or first few terms), and tells how the nth term is related to one or more of the previous terms. |

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cmorris99