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# Go Math Ch 3 Vocab

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

absolute value | the distance of an integer from zero on a number line |

coordinate plane | a plane formed by a horizontal line called the x-axis and a vertical line called the y-axis |

integers | the set of whole numbers and their opposites |

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

ordered pair | a pair of numbers used to locate a point on a grid |

origin | the point where the two axes of a coordinate plane intersect; (0, 0) |

quadrants | the four regions of the coordinate plane separated by the x- and y-axes |

rational number | any number that can be written as a ratio a/b where a and b are integers and b does not equal 0 |

line of symmetry | a line that divides a figure into two halves that are reflections of each other |

line symmetry | when a figure can be folded about a line so that its two parts match exactly |

negative integer | any integer less than zero |

positive integer | any integer greater than zero |

x-axis | the horizontal line on a coordinate plane |

x-coordinate | the first number in an ordered pair; tells the distance to move right or left from (0, 0) |

y-axis | the vertical number line on a coordinate plane |

y-coordinate | the second number in an ordered pair; tells the distance to move up or down from (0, 0) |

Created by:
cdeoliveira