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# Ch 8 Vocab.

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

what is a set of ordered pairs? | relation |

what are the first coordinates of a relation? | domain |

what are the second coordinates of a realtion? | range |

what is when each memeber of the domain is paired with exactly one member of the range? | function |

what is any vertical line that passes through at most one point on the graph. if you can find a vertical line that passes through two points on the graph, then the relation is NOT a function? | vertical-line test |

what is an ordered pair that makes such an equation a true statement? | solution |

what is any equation whose graph is a line? | linear equation |

what is the ratio that describes the tilt of a line? | slope |

what is the point of the line where the line crosses the y-axis? | y-intercept |

the equation y= mx + b is what? | slope-intercept form |

what is when you use f(x) instead of y? | function notation |

what is an equation that describes a function? | function rule |

what is a graph that shows the relationship between two sets of data? | scatter plot |

what happens when one set of values increases, and the other set tends to increase? | positive correlation |

what is when one set of values increases, and the other set tends to decrease? | negative correlation |

what is when the values sho no relationship? | no correlation |

what closely fits the data points in the scatter plot? | trend line |

what do two or more linear equations form? | system of linear equations |

what happens if you replace the equal sign in a linear equation with >,<,greater than or equal to, or less then or equal to? | linear inequality |

what do two or more linear inequalities form? | system of linear inequalities |

Created by:
Shythebutterfly