Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

Normal Size Small Size show me how

# AlgebraAM

### chap. 4 vocab terms-graphing linear equatons and functions

term | definition |
---|---|

quadrant | Bfour regions into which the coordinate plane is divided by the x-axis and the y-axis |

standard form of a linear equation | Ax+By=C, where A,B and C are real numbers and A and B are not both zero |

linear function | the equation Ax+By=C represents a linear function provided B does not equal 0 |

x-intercept | the x-coordinate of a point where a graph crosses the x-axis |

y-intercept | the y-intercept of a point where the graph crosses the y-axis |

slope | the slope of a nonvertical line is the ratio of the vertical change(rise) to the horizontal change(run) between any two points on the line. |

rate of change | a comparison of a change in one quantity with a changge in another quantity. |

slope-intercept form | a linear equation written in the form y=mx+b where m is the slope and b is the y-intercept of the equation's graph. |

parallel | two lines in the same plane that do not intersect. |

direct variation | the relationship of two variablezsx and y if there is a nonzero number a such that y=ax. if y=ax, then y is said to vary directly with x. |

constant of variation | the nonzero constant a in a direct variation equation y=ax or in an inverse variation equation y=a/x. |

function notation | a way to name a function is using the symbol f(x) instead of y. the symbol f(x) is read as "the value of f at x" or as "f of x". |

family of functions | a group of functions with similar characteristics. |

parent linear function | the function f(x)=x, which is the most basic function in the family of linear functions. |

Created by:
amalum