Gujarat BoardEnglish MediumSTD 9MathsCo-ordinate Geometry [NEW]1 Mark
MCQ
If noints $P(3,0)$ and $O(a, 0)$ are equidistant from the origin, then $a=$
A
3
B
-3
C
6
D
9
✓
Answer
B. -3 Points $P$ and $Q$ are on $x$-axis and are equidistant from the origin. So, Q Ires on $O X$ at $a$ distance of 3 units from the origin. Therefore, coordinates of $Q$ are $(-3,0)$. Hence, $a=-3$.
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