Find parametric equations for the line of intersection of the two planes.

P1: 2x − y + z = 1 P2 : x − y + z = 2

<2,-1,1> X <1,-1,1> = <0,-1,1>

x = -1

y=t

z=3+t

I don't know how the book gets this answer.

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- November 29th 2008, 07:06 PMkhuezyHelp with parametric equation
Find parametric equations for the line of intersection of the two planes.

P1: 2x − y + z = 1 P2 : x − y + z = 2

<2,-1,1> X <1,-1,1> = <0,-1,1>

x = -1

y=t

z=3+t

I don't know how the book gets this answer. - November 29th 2008, 11:52 PMmr fantastic