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3. Coordinate Geometry
easy
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
$Q$ and $O$
B
$P$ and $R$
C
$O$ and $Q$
D
$R$ and $S$
Solution
We know that if a point lies in the $x$ -axis, its ordinate is $0 .$
So, the points on the axis are $Q(8,0)$ and $O(0,0) .$
Standard 9
Mathematics