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# Chapter 3 math 8th g

### 8th Math vocabulary

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

Constant of porportionality | The constant ratio in a porportional linear relationship |

Constant of variation | A constant ratio in a direct variation |

Constant rate of change | The rate of change between any two points in a linear relationship |

Direct variartion | A relatiobship between 2 variable quantities with a canstant ratio |

Linear relationship | Relationships that have straight line graphs |

Point slope form | An equation of the form y-y1=m(x-x1) is given point on a nonvertical line |

Rise | An angle whose measure is exactlt 90 degrees |

Run | The horizontal change between any 2 points on a line |

Slope | The rate of change between any 2 pooints on a line |

Slope intercept form | An equation written in the form y=mx+b where m is the slope and b is the y intercept |

Standard form | An equation written in the for Ax+By=C |

Substitution | An algebraic model that can be used to find the exact solution of a system of equations |

Systems of equations | A set of 2 or more equations with the same variable |

X-intercept | The x coordinate of the point where in crosses the x axis |

Y-intercept | The y coordinate of the point where the lines crosses the x axis |

Created by:
asimien907