A point is in the XZ - plane. What can you say about its y - coordinate?

Solution:

In three-dimensional geometry, if a point is in XZ - plane, then its y - coordinate is 0.

Thus, the answer is 0.

Note: 

• If a point is in the XY - plane, its z - coordinate is 0.
• If a point is in the YZ - plane, its x - coordinate is 0.
• If a point is in the ZX - plane, its y - coordinate is 0.

NCERT Solutions Class 11 Maths Chapter 12 Exercise 12.1 Question 2

A point is in the XZ - plane. What can you say about its y - coordinate?

Summary:

The y - coordinate is 0