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    A=(1,-8,-2) b=(9,2,4)

    the plane p contains the point b and is perpendicular to AB. Find the equation of the plane.

    Please help- does it mean direction vector AB or A times B? And if it were A times B, would the normal to the plane be A times B or would it be parallel to A and B?

    I would really appreciate some help if you can
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    (Original post by albyedw)
    A=(1,-8,-2) b=(9,2,4)

    the plane p contains the point b and is perpendicular to AB. Find the equation of the plane.

    Please help- does it mean direction vector AB or A times B? And if it were A times B, would the normal to the plane be A times B or would it be parallel to A and B?

    I would really appreciate some help if you can
    A times B is meaningless

    it is asking you to find the equation of a plane where point B lies on the plane and the vector AB is the normal
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    (Original post by albyedw)
    A=(1,-8,-2) b=(9,2,4)

    the plane p contains the point b and is perpendicular to AB. Find the equation of the plane.

    Please help- does it mean direction vector AB or A times B? And if it were A times B, would the normal to the plane be A times B or would it be parallel to A and B?

    I would really appreciate some help if you can
    A and B are supposed to be points. You can't multiply points.
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    the line segment AB is perpendicular to the plane.
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    thanks. Does that mean b-a is my normal?
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    (Original post by albyedw)
    thanks. Does that mean b-a is my normal?
    Yes.
 
 
 
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