March 28, 2017

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Is the following pair of lines paralle or perpendicular? Prove the answer.


I think that the lines are perpendicular but do not know how to work the problem.
x=6/5 y=8/5 Can some one show me how to work this equation?

  • algebra - ,

    x=6/5 y=8/5 are the coordinates of the intersection point, but that does not tell you if the lines are perpendular or not.

    The slope of the first line is 1/2.
    The slope of the second line is -2.

    Because the product of the slopes is -1, they are perpendicular.

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