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# Functions Vocab

### For 8th Grade Math

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

Function | A type of relation that assigns exactly one output to each input |

Input | The independent variable of a relation |

Linear Function | A function that can be expressed in the form y=mx+b |

Many-To-Many | Describes a relation in which one input is mapped onto many outputs and one output is related to many inputs. |

Many-To-One | Describes a relation in which many inputs are mapped onto one output |

Mapping Diagram | A diagram that pairs a set of inputs with a set of outputs |

Nonlinear Function | A function whose points do not lie on a line |

One-To-Many | Describes a relation in which one input is mapped onto many outputs |

One-To-One | Describes a relation in which each input is mapped onto only one output |

Output | The dependent variable of a relation |

Rate of Change | The ratio of changes in two quantities |

Relation | This pairs a set of inputs with a set of outputs |

Vertical Line Test | A test to determine whether a graph is a function: If a vertical line intersects a graph at more than one point, then the graph does not represent a function. |

Created by:
kelly.kristiansen