- #1
Potatochip911
- 318
- 3
Homework Statement
Find the equation for the plane containing the lines:
x-y+2z=4
2x+y+3z=6
and the point: (1,-2,4)
Homework Equations
A(x-xi)+B(y-yi)+C(z-zi)=0
The Attempt at a Solution
First I wrote down the vectors from the line equations,
V1=<1,-1,2>
V2=<2,1,3>
After this I did the cross product to get the perpendicular vector and I ended up with
Vp=<-5,1,3>
now using the equation and the point given at the start
-5(x-1)+1(y+2)+3(z-4)=0
-5x+y+3z-5=0
The correct answer is: 8x+13y+9z-18=0