# 1.2 Linear Functions

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cmarquardt94's
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2016-09-08 02:15

## Section

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

how can we tell by looking at a graph if it is a Linear Function? | if the graph is a Straight Line |

what is the equation for Slope? | rise / run (use any 2 points on the line) |

What must something pass to be considered a Function? | the Vertical Line Test |

Are Circles Functions? | No, they fail the vertical line test |

What is the Domain? | the set of Inputs for a function (x-values) |

What is the Range? | set of Outputs for a function (y-values) |

What 2 things are Linear Functions made up of? | Slope & y - intercept |

what is slope intercept form? | y = mx + b (m) = slope (b) = y -int |

what is point slope form? | y-yo = m(x - xo) |

what is the slope and what does the line look like for y = 6 | the Slope = 0 and it is a completely flat horizontal line |

if we have the equation x = 8 what does that mean? | the slope is Undefined and it is a straight Vertical Line |

How do we find the equation for a line, when we are given 2 points? | step1: find the slope of the 2 points step2: find the Y-intercept(b) step3: now that we have "m" and "b" put into "y = mx + b" form |

How do we know if data from a table came from a Linear Function? | if differences in "y-values" are constant for equal differences in "x-values" |

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