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# Alg 1 Unit 1

### Vocabulary

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

sequence | a list of numbers, and each number is called a term of the sequence. For example: 2, 4, 6, 8, … and 2, 5, 10, 17, … are sequences. |

common difference | the constant difference between consecutive terms |

expression | may consist of numbers, variables, and operations. |

variable | a list of numbers, and each number is called a term of the sequence. For example: 2, 4, 6, 8, … and 2, 5, 10, 17, … are sequences. |

equilateral | , all sides have the same measure. |

equation | a mathematical statement that shows that two expressions are equal. |

solution | is any value that makes an equation true when substituted for the variable. |

formula | is an equation written using symbols that describes the relationship between different quantities. |

literal equation | has more than one variable, and the equation can be solved for a specific variable. |

graph of an inequality | in one variable is all the points on a number line that make the inequality true. |

solutions of an inequality | in one variable is the set of numbers that make the inequality true. |

compound inequality | are two inequalities joined by the word and or by the word or. |

conjunction | Inequalities joined by the word and |

disjunction | Inequalities joined by the word or |

absolute value | is the distance from 0 to the number on a number line. |

absolute value notation | |-3| used to denote the absolute value of -3 |

absolute value inequality | is an inequality involving the absolute value of a variable expression. |

absolute value equation | is an equation involving the absolute value of a variable expression. |

Created by:
tracymay1913