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# Gr7 Mod 2 Topic A

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

Rational Numbers | A set of numbers that can be written as fractions. |

Integers | The set of numbers that include only whole positive and negative amounts and 0. |

Positive Numbers | All numbers greater than zero. (including fractions) |

Negative Numbers | All numbers less than zero. (including fractions) |

Opposite Numbers | A pair of numbers that have oppsite signs. (same Number) |

Additive Inverse | The opposite of number so that the two values add up to zero. |

Vector | A symbol that shows length and direction. |

Absolute Value | The distnace from the zero. |

Rule of subtraction | Subtraction is the same as adding the opposite. |

Proportional | A proportion is an equation in which two ratios are set equal to each other. |

Constant of Proportionality | the constant ratio between two proportional quantities y/x denoted by the symbol k. y=Kx |