On which axis do the following points lie?
(i) P (5, 0) (ii) Q (0 -2)
(iii) R (- 4, 0) (iv) S (0, 5)
P on x-axis, since ordinate is zero.
Q on y-axis, since abscissa is zero.
R on x-axis, since ordinate is zero.
S on y-axis, since abscissa is zero.