- #1
morsel
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Homework Statement
Find an equation of the plane that passes through the point (-1,2,1) and contains the line of intersection of the planes x + y - z = 2 and 2x - y + 3z = 1
Homework Equations
Equation of a plane:
a(x-x0) + b(y-y0) + c(z-z0) = 0
The Attempt at a Solution
n1 = <1,1,-1>
n2 = <2,-1,3>
n1[tex]\times[/tex]n2 = <2,-5,-3> = <a,b,c>
Equation:
2(x+1) - 5(y-2) - 3(z-1) = 0
2x - 5y - 3z = -15
What am I doing wrong? Any help is appreciated.