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# MMS SolvingEquations

### Matoaca Middle School Solving Equations Vocabulary

term | definition |
---|---|

zero pair | the result of pairing one positive counter with one negative counter |

absolute value | the distance from zero on the number line |

additive inverse | an integer and its opposite. The sum of an integer and its opposite is zero. |

coefficient | the numerical part of an expression |

coordinate system or coordinate plane | a plane made up of a horizontal number line and a vertical number line that intersect at their zero points |

defining a variable | choosing a variable and a quantity for the variable to represent in an equation |

inequality | a mathematical sentence that contains the symbols < or >, |

integer | the whole numbers and their opposites. For example...-3, -2, -1, 0, 1, 2, 3, ... |

negative integer | integer less than zero |

opposites | Two numbers are opposites of each other if they are represented by points that are the same distance from zero, but on opposites of 0. |

ordered pair | a pair of numbers used to locate a point in the coordinate system. It is written in this form: (x-coordinate, y-coordinate) |

origin | the intersection of the x- and y-axis in a coordinate system |

positive integer | integer greater than zero |

quadrant | one of the 4 regions into which the intersecting number lines divide the coordinate system |

rule for multiplying integers | The product of two integers with different signs is negative. |

rule for subtracting integers | To subtract an integer, add its additive inverse. Ex. Arithmetic: 6 - 3 = 6 + (-3) |

term | a number, a variable, or a product of numbers and variables. 2 or more terms in one expression are separated by operation signs such as +, -, x, /, etc. |

x-coordinate | the first number of an ordered pair |

y-coordinate | the second number of an ordered pair |

y-axis | vertical number line in a coordinate palne |

x-axis | horizontal number line in a coordinate plane |

Created by:
DDavis