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# Koehne Linear Funct

### Precal Review of Linear Functions

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

Slope measures... | Rate of change of y with respect to x |

Slope-Intercept form of a line is... | y=mx+b |

In the slope-intercept form of an equation, the slope is represented by the letter _____ | m |

If the y-intercept of a line is -4, the point represented by this is... | (0,-4) |

Slopes of parallel lines are... | The same |

Slopes of perpendicular lines are... | Opposite reciprocals |

Linear functions are unique because... | Their slopes are constant |

The slope of a horizontal line is... | 0 |

The slope of a vertical line is... | undefined because we cannot divide by 0 |

The equation of a horizontal line is in the form... | y=c |

The equation of a vertical line is in the form... | x=c |

The slope of a line which contains the points (2,5) and (-3,-10) is... | 3 |

The point-slope form of a linear equations is... | y-y1=m(x-x1) |

The equation of a line with slope = 3 through the point (-3, -10) is... | y+10=3(x+3) |

The slope of the line with equation 3x+5y-9=0 is... | -3/5 |

To find the equation of a line given a graph of the line, we would... | Locate the y-intercept. Determine the slope by finding the distance up/down and right/left from the y-intercept to another point on the line. The put the slope and y-intercept into the equation y=mx+b. |

Created by:
Mrs Koehne