Question

A linear equation in three variables of the form ax+by+cz+d=0 represents a _________.​

Answer 1

Answer:

plane is the correct answer

Answer 2

Answer:

A linear equation in

3

variables represents a plane in 3 dimensional space.

So a system of two such equations represents two planes, with the solution being the points of intersection.

Two planes may be parallel, so not intersect, or cross in a line or be identical.

They cannot intersect at just one point.