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# 7th Grade Chapter 5

### Math Vocab

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

X intercept | The X coordinate of the point where the graph of a line crosses the X - axis. |

X-axis | The horizontal axis on a coordinate plane. |

Ordered pair | A pair of numbers that can be used to locate a point on a coordinate plane. |

Origin | The point where the x axis and y axis intersect on the coordinate plane. |

Arithmetic sequence | Terms of a sequence differ by the same nonzero number. |

Input | The value substituted into an expression of function. |

Output | The value that results from the substitution of a given input into an expression or function. |

Quadrant | The x- and y- axis divide the coordinate plane into four regions. |

Common difference | The difference in terms of an arithmetic sequence. |

Constant of variation | The constant k in direct and inverse variation equations. |

Coordinate plane | A plane formed by the intersection of horizonal and vertical number lines. |

Linear equation | An equation whose solutions form a straight line on a coordinate plane. |

Y-axis | The vertical axis on a coordinate plane. |

Y intercept | The y coordinate of the point where the graph of a line crosses the y-axis. |

Rate of change | A ratio that compares the amount of change in a dependent variable to the amount of change in an independent variable. |

Sequence | An ordered list of numbers. |

Slope | A measure of the steepness of a line on a graph: the rise divided by the run. |

Slope-intercept form | A linear equation written in form y=mx+b where m represents slope and b represents the y-intercept. |

Geometric sequence | A sequence in which each term is multiplied by the same value to get the next term. |

Linear function | A function whose graph is a straight line. |

Direct variation | A linear relationship between two variables, x and y, that can be written in the form y=kx, where k is a nonzero constant. |

Function | An imput-output relationship that has exactly one output for each input. |

Term | An element or number in a sequence. |

Created by:
mwas