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# Functions Vocab

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

x axis | a line on a graph that runs horizontally through zero |

y axis | a line on a graph that runs vertically through zero |

coordinate plane | the plane containing the x axis and the y axis |

ordered pair | a specific location on a graph named by itâ€™s x coordinate, y coordinate (x, y) |

function | a special relationship between values where each of its input values gives back exactly one output value |

input | the number or value that is entered to get the output. The input is represented as x, in the equation y = 5 + x |

output | the number or value that is the result of a given input. The output is represented as y, in the equation y = 5 + x. |

horizontal | a line that runs left-to-right, across |

vertical | a line is one which runs from up and down |

relation | a set of one or more ordered pairs |

function | a special type of relation with a rule that there is exactly one output (y) for each input (x) |

relation (only) | a set of ordered pairs that repeats an x-value |

function and relation | a set of ordered pairs where the x-values are different |

Created by:
lisa.hollendonner