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# Ch 8 Math Vocab

### Linear Functions

Question | Answer |
---|---|

A pairing of numbers. | relation |

Another name for 'x' in a relation or the input | domain |

Another name for 'y' in a relation or the output | range |

For each input there is exactly on ouput. | function |

A test to tell if a linear equation is a function or not. | vertical line test |

An equation whose graph is a line | linear equation |

An equation that is solved for y. | function form |

The set of points in a coordinate plane that represent all the solutions of the equation. | coordinate points |

A point where a graph crosses the x-axis. | x-intercept |

A point where a graph crosses the y-axis. | y-intercept |

The ratio of the line's vertical change to its horizontal change. | slope |

rise over run | slope |

y=mx+b | slope-intercept form |

m | slope |

b | y-intercept |

A line that lies as close as possible to the data points | best-fitting line |

f(x)= | function notation |

Consists of two or more linear equations with the same variables. | system of linear equations |

An ordered pair that is a solution of each question in the system. | solution of a linear system |

Created by:
stollerp