Question

Any point on the y-axis is of the form:
(a) (x, 0), where x ≠ 0
(b) (0, y), where y ≠ 0
(c) (x, x), where x ≠ 0
(d) None of these

Answer 1

(b) (0, y), where y ≠ 0
Any point on the $y$-axis is of the form $(0,y)$, where $y$ ≠ 0.