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# Unit 3 Vocab

### Ms.Roland's flashcards

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

slope | the steepness of a line |

Constant of Proportionality | the constant value of the ratio of two proportional quantities x and y |

Direct Variation | mathematical relationship between two variables that can be expressed by an equation in which one variable is equal to a constant times the other |

X- intercept | the x-coordinate of a point where a line, curve, or surface intersects the x-axis |

Y- intercept | the y-coordinate of a point where a line, curve, or surface intersects the y-axis |

Linear equation | an equation between two variables that gives a straight line when plotted on a graph |

Unit rate | the ratio of two measurements in which the second term is 1 |

Rate of change | The ratio of the change in the output value and change in the input value of a function is called as Rate of Change |

Slope-intercept form | an algebraic equation in which each term is either a constant or the product of a constant and a single variable |

Proportional relationship | a relationship between inputs to outputs in which the ratio of inputs and outputs is always the same |

Point-slope | the equation of a straight line in the form y − y1 = m(x − x1) where m is the slope of the line and (x1, y1) are the coordinates of a given point on the line |

Intersecting lines | Lines that have one and only one point in common are known as intersecting lines |

Created by:
Trekeyiah