Question

If a point lies on line $y=-1$, then its x-coordinate is and y-coordinate is .

• A. -1
• B. 1
• C. a positive number
• D. a real number

Answer 1

Answer: (A), (D)

a real number

Since it is given that the point lies on the line y = -1, its y coordinate will be -1.
Also, any point on the line y = -1 satisfies the condition. Hence, its x coordinate could be any real number.