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# Pre Algebra Ch 3

### Pre Algebra Chapter 3

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

constant of variation | The number k in an equation of the form y = kx. |

direct variation | An equation of the form y = kx, where k 0. |

linear relationship | A relationship that has a straight line graph. |

point-slope form | An equation of the form y - y1 = m(x - x1) |

slope | rise over run represented as a change in y values over a change in x values |

slope-intercept form | An equation written in the form y = mx + b |

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

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

system of equations | A set of two or more equations with the same variables. |

x-intercept | The x-coordinate at which a graph intersects the x-axis. Example: (8, 0) |

y-intercept | The y-coordinate at which a graph intersects the y-axis. Example: (0, 6) |

rate of change | The change in a quantity over time. |

Created by:
mrsott