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# Equations 8th

### Equation vocabulary

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

coordinate plane | A plane formed by two intersecting perpendicular number lines used to help locate the position of any point on a map or graph. |

x axis | The horizontal axis of a coordinate plane. |

y axis | The vertical axis of a coordinate plane. |

quadrant I | The upper right quadrant of a coordinate plane (+,+). |

quadrant II | The upper left quadrant of a coordinate plane (-,+). |

quadrant III | The lower left quadrant of a coordinate plane (-,-). |

quadrant IV | The lower right quadrant of a coordinate plane (+,-). |

independent variable | The input numbers of a function. The x values. |

multiplicative inverse | The number that when multiplied by a given number results in a product of one. It is also called the reciprocal. |

coefficient | The numerical factor of a term. The number in front of a variable. |

identity | An equation that is true for every value of the variable. |

null set | A set that contains nothing. It is also called the empty set. |

equation | A mathematical sentence stating that two expressions are equal. |

expression | A mathematical combination of numbers, variables, and operations. |

product | The answer to a multiplication problem. |

factor | One of the numbers or variables being multiplied. |

quotient | The answer in a division problem. |

variable | The unknown number represented by a letter of the alphabet. |

properties. | A statement that is true all of the time. |

one step equations | An equation containing only one operation. |

two step equations | An equation containing two operations. |

multi-step equations | An equation containing many operations. |

reciprocal | A fraction that has been turned upside down,. It is also called the multiplicative inverse. |

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kjones4514