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Math Help - Parallel and Perpendicular Lines?

  1. #1
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    Parallel and Perpendicular Lines?

    To find parallel and perpendicular lines:

    01) The slope of a line is 3/2. What is the slope of any line parallel to this line?

    02) The slope of a line is -4/5. What is the slope of any line perpendicular to this line?

    help?
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  2. #2
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    Two lines are parallel if their slopes are equal, m_1=m_2.

    Two lines are perpendicular if their product is -1, this is m_1\cdot m_2=-1.
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  3. #3
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    Quote Originally Posted by Krizalid View Post
    Two lines are perpendicular if their product is -1, this is m_1\cdot m_2=-1.
    Two non-vertical lines are perpendicular if ....

    I am just saying that because you love dead accuracy.
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