It goes like this:
what does the following equation represent in space: ax+by+c=0.
a) a parallel line to Oz axis;
b) a parallel line to (xOy) plane;
c) a parallel plane to Oz axis;
d) a parallel plane to (xOy) plane;
e) a line that passes by the origin O of the axis system;
I am looking forward for your answers.
2006-07-15 04:54:51 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
ok forgot to give u my opinion hehe:
1) is not geometry in plane but geometry in space;
2) a line can be seen in space as the intersection of 2 planes;
3) general equation of a plane is ax+by+cz+d=0;
4) the given equation in the question is obviously the equation of a plane;
5) it can easily be seen that z=0;
6) z=0 then this is the equation of the xOy plane;
7) the answer can not be found among a,b,c,d,e;
8) pls explain your answers don't randomize just to ask the question;
2006-07-15 05:05:38 · update #1
ok. This question is closed now. I don't care for future answers. I must thank to Tom. I did not consider the fact that the coeficient of z can be 0. I was just thinking of z beeing zero :) (he'll get the best answer if it matters...to him...)
2006-07-15 05:28:53 · update #2
c.
the equation is that of a line... but..
because z can be any value...
then it represents an infinite number of lines.. thus it is a plane parallel to the z-axis
2006-07-15 05:24:02 · answer #1 · answered by ♥Tom♥ 6 · 0⤊ 0⤋
A plane parallel to OZ axis
It intersects X axis at -c\a and Y axis at -c\b.
Am I correct?
2006-07-15 05:15:16 · answer #2 · answered by rabi k 2 · 0⤊ 0⤋
a ans is a
2006-07-15 04:58:25 · answer #3 · answered by sahi 2 · 0⤊ 0⤋
c.
2006-07-15 05:00:46 · answer #4 · answered by Anonymous · 0⤊ 0⤋