A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
For x+y+z=1 and x+2y+2z=1, find the parametric equations for the line of intersection of the planes
anonymous
 one year ago
For x+y+z=1 and x+2y+2z=1, find the parametric equations for the line of intersection of the planes

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I know that I'd have to do the cross product of those two planes, which I'm perfectly fine with that part. It's a matter of finding the point after setting one variable to zero that I'm a bit rusty on. Professor kinda rushed it in class and skipped this step

Loser66
 one year ago
Best ResponseYou've already chosen the best response.1Show your work, please

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0x+y+z=1 gives n1=<1,1,1> x+2y+2z=1 gives n2=<1,2,2> Then I would take the cross product: n=n1xn2 Following this, whatever point I get from the issue mentioned above by setting one variable=0 and solving for the other two to get some point (x,y,z) would be multiplied by the vector n  then it's just a matter of formatting. I just don't really remember the process to get the point and we did this right at the very end of class (he went over the time), so the process was not discussed in a way that would refresh my memory. I understand the rest just fine

Loser66
 one year ago
Best ResponseYou've already chosen the best response.1ok, I give you this x +y + z = 1 x + 2y +2z = 1 hence y + z =0 or y = z. set z = t, then y = t x = 1 y  z = 1+t +t = 1+ 2t Your parametric equation is x = 1 + 2t y = t z =t dat sit

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0That's all I needed right there, got it now  thank you!

Loser66
 one year ago
Best ResponseYou've already chosen the best response.1To this kind of problem, just add them up or subtract them to eliminate one variable, then set z = t to solve for y, then for x. Dat sit
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.