1003164406

SubArea: 
Space geometry
Level: 
A
Project ID: 
1003164406
Accepted: 
1
Clonable: 
0
Easy: 
1
Determine whether any of the lines p, q or r defined by the parametric equations given below passes through the coordinate origin. p:x=−2+4t,q:x=−5−5s,r:x=3−6u,y=1−2t,y=2−2s,y=−12+u,z=−3+3t; t∈Rz=5+5s; s∈Rz=2−4u; u∈R
Yes, it's the straight line r.
Yes, it's the straight line p.
Yes, it's the straight line q.
None of the lines passes through the coordinate origin.