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# Algebra 2 unit 2

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

Relation | A set of pairs input and output values. You can write a relation as a set of ordered pairs. |

Domain | Of a relation is the set of all imputs, or x-coordinates. |

Range | Of a relation is the set of all outputs or y-coordinates. |

Mapping Diagram | Domain is the x value. Range is the y value. |

Function | Is a relation in which each element of the domain is paired with exactly one element in the range. |

Vertical Line Test | Use to determine whether the relation has at least one element of the domain paired with more than one element of the range. If the vertical line passes through two or more points on the graph, then the relation is not a function. |

Function Notation | f(x) read as f of x |

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

Linear Equation | Represents a linear function y=2x+1 |

Dependant Variable | Is the y variable because it depends on what you put in for x |

Independant Variable | Is the x variable |

Y-Intercept | The starting point when graphing, the b. |

X-Intercept | The horizontal point on a graph. |

Standard Form of a Linear Equation | Ax + By = C |

Slope | M = Slope = rise before run |

Slope Intercept Form | y = mx + b |

Absolute Value Function | y = [mx + b] |

Vertex | Of a function is a point where the function reaches a maximum or minimum. |

Linear Inequality | Is an inequality in two variables whose graph is a region of the coordinate plane that is bounded by a line. |

Absolute Value Linear Inequalities | y < or > [mx + b] |

Steps to Find a Linear Equation on a Calculater | |

Composite Function | Three functions with suitably chosen domains and codomains. |

Inverse Relation | Opposite of converse. |

Created by:
BGuice
on 2008-10-16