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# Topic 2 Vocabulary

### Integers & Rational Numbers

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

the distance between a number and zero on a number line |5|=5 |-5|=5 | absolute value |

the size of a number, another word for absolute value | magnitude |

two numbers that are the same distance from zero on a number line, but in different directions | opposites |

a number that cannot be written as a fraction, as a decimal it will NOT terminate or repeat | irrational number |

counting numbers | natural numbers |

all counting numbers and zero | whole numbers |

all positive whole numbers, zero, and their negative opposites | integers |

a number that can be written in fraction form (positive or negative), as a decimal it WILL either terminate or repeat | rational number |

formed by the intersection of a horizontal (↔) number line (x-axis) and a vertical (↕) number line (y-axis) creating a grid to find locations using two coordinates | coordinate plane |

the location of a point from the origin on the coordinate plane (x,y) • the x-coordinate shows the location left or right • the y-coordinate shows the location up or down | ordered pair |

the point on a coordinate plane where the x-axis and y-axis intersect (0, 0) | origin |

the horizontal (↔) number line on the coordinate plane | x-axis |

the vertical (↕) number line on the coordinate plane | y-axis |

the four regions of the coordinate plane created by the intersection of the x-axis and y-axis | quadrants |