If P (5, 1), Q (8, 0), R (0, 4), S (0, 5) and O (0, 0) are plotted on the graph paper, then the point(s) on the x-axis are:
(A) P and R
(B) R and S
(C) Only Q
(D) Q and O
Answer: (D) Q and O
Solution.
Plotting the given points, we have:
(A) Points P and R lie on a different axis. So it is incorrect.
(B) Points R and S lie on the y-axis because, on the y-axis, the x-coordinate is always zero. So it is incorrect.
(C) Point Q (8, 0) lies on the x-axis because, on the x-axis, the y-coordinate is always zero. So it is incorrect.
(D) Points Q and O have a y-coordinate of 0, so they are plotted on the x-axis. So this is correct.
Therefore option (D) is correct.