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# Speed, Graphs, Accel

### Speed, Graphing, and Acceleration

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

independent variable | the variable graphed on the x-axis |

dependent variable | the variable graphed on the y-axis |

slope | the formula (y2-y1)/(x2-x1) that tells you how much the variables of your graph are changing with respect to each other |

key | used when you graph more than one set of data to distinguish between them |

scale | the interval that you use to label the x and y axes |

speed | how quickly the position of an object changes from start to end point |

distance | an interval of length without regard to direction |

position | an interval of length that includes direction |

time | the interval between two events or a specific instant |

instantaneous speed | the speed of an object at a specific moment in time |

average speed | the speed of an object across a beginning and end point |

interpolation | estimating the location of a data point that is in between two given data points in a data set |

extrapolation | estimating the location of a data point that is beyond the given data points in a data set |

directly proportional | when two variables increase or decrease together with a constant ratio and the graph of their relationship is a straight, positive line |

inversely proportional | when one variable increases, the other decreases with a constant ratio and the graph of their relationship is a straight, negative line |

strong relationship | when two variables directly impact each other in a significant way and the graph of their relationship shows a definite shape |

weak relationship | when two variables seem to impact each other but the graph of their relationship appears to be scattered |

acceleration | how much an object's speed or velocity changes in a certain amount of time |

velocity | speed with direction |

instantaneous acceleration | the acceleration of an object at a specific moment in time |

average acceleration | the acceleration of an object across a beginning and end point |

Created by:
holtzmanscience