Answer:
Option b.
Step-by-step explanation:
The set of points (x, y, z) such that y = 5 and z = 6.
So, all pairs are in the form of (x,5,6).
where, x can be any real number.
It the set of points (x,y,6), y and z-coordinates are constant.
So, the pair of equations y = 5, z = 6 represents a line parallel to x-axis and the distance of this line from xy-plane is 6 units and from xz plane is 5 units.
Therefore, the correct option is b.
