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प्रश्न
Obtain the equation of the line which is: parallel to the X-axis and 3 units below it.
उत्तर
Equation of a line parallel to X-axis is y = k.
Since, the line is at a distance of 3 units below X-axis.
∴ k = – 3
∴ the equation of the required line is y = – 3 i.e., y + 3 = 0.
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