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प्रश्न
If y-coordinate of a point is zero, then this point always lies ______.
विकल्प
in I quadrant
in II quadrant
on x-axis
on y-axis
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उत्तर
If y-coordinate of a point is zero, then this point always lies on x-axis.
Explanation:
If y-coordinate of a point is zero, then this point always lies on x-axis. Because perpendicular distance of the point from x-axis measured along y-axis is zero.
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