Question

If point P lies on the line y = -1, then its x and y coordinates are

• A. x = -1, y = -1
• B. x = -2, y = -1
• C. y = 1, x = -1
• D. y = -1, x can be any real number.

Answer 1

The correct option is D

y = -1, x can be any real number.

Since it is given that the point P lies on the line y = -1, it's y-coordinate will be -1.

Its x-coordinate, however, can be any real number.