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# AnielMath8Unit1B-4

### Math 8 Unit 1B -4 Vocabulary

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

Alternate Interior Angles | Two interior angles that lie on opposite sides of the transversal. |

Transversal | A line that cuts across two parallel lines, intersecting each one. |

Straight Angle | The two rays that make an angle form a straight line. |

Dilation | A point P on line OP moves to another point along line OP either further away or closer from the center O and by a positive scale factor of r. |

Similar | A sequence of rigid transformations and dilations that move one figure so that it fits exactly over another figure. |

Slope | The quotient of the vertical distance and the horizontal distance between any two point on a line. |

Linear Relationship | A relationship between two quantities where one quantity has a constant rate of change with respect to the other. |

Rate of Change | It tells you have much y changes when x changes by 1 in a linear relationship. |

Solution to an Equation with Two Variables | Any pair of (x,y) that can be used in place of the variables to make the equation true. |

Vertical Intercept | The point where the graph crosses the vertical axis. |

Constant Term | In an expression like 5x + 2, it is the number 2 because it doesn't change when x changes. |

System of Equations | A set of equations where you want to find a solution that makes all the equations true at the same time. |

Created by:
anielam