Question

If the y-coordinate of a point is zero then this point always lies
(a) on the y-axis
(b) on the x-axis
(c) in the I quadrant
(d) in the IV quadrant

Answer 1

The coordinates of a point on the x-axis are of the form (x, 0) and that of the point on the y-axis is of the form (0, y).

Thus, if the y-coordinate of a point is zero, then this point always lies on the x-axis.

Hence, the correct answer is option (b).