- #1
alexandra2727
- 3
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∴1. Homework Statement
Find an equation for the plane that contains the point (1,-1,2) and the line x=t, y=t+1, z=-3+2t?
2. Homework Equations
I don't know what I am doing wrong but everytime I try to do these plane questions my amswer is always the opposite sign of the real answer.
P1(7,0,1)
P2(7,3,0)
P1P2 (0,3,-1)
n(7,-1,2)
P1P2 crossproducted with n = (5,-7,-21)
∴ 5(x-7)-7y-21(z-1)=0
Find an equation for the plane that contains the point (1,-1,2) and the line x=t, y=t+1, z=-3+2t?
2. Homework Equations
The Attempt at a Solution
I don't know what I am doing wrong but everytime I try to do these plane questions my amswer is always the opposite sign of the real answer.
P1(7,0,1)
P2(7,3,0)
P1P2 (0,3,-1)
n(7,-1,2)
P1P2 crossproducted with n = (5,-7,-21)
∴ 5(x-7)-7y-21(z-1)=0