Question

Which of the points P(0,3), Q(1,0), R(0,1), S(5,0), T(1,2) do not lie on the x-axis ?

Answer 1

Any point which do not lie on the x− axis has coordinates of the form (x,y), where y $\ne$ 0
From the given points,
in P(0,3), y = 3 $\ne$ 0
in Q(1,0), y = 0,
in R(0,1), y = 1 $\ne$ 0
in S(5,0), y = 0
and in T(1,2), y = 2 $\ne$ 0
We can see that, the coordinates of points P, R and T have $\ne$ 0
Thus, P,R and T do not lie on the x− axis.