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Question
Write the equation of the line :
parallel to the X-axis and at a distance of 4 unit form the point (−2, 3)
Solution
Equation of a line parallel to the X-axis is of the form y = k (k > 0 or k < 0).
Since the line is at a distance of 4 units from the point (− 2, 3),
k = 4 + 3 = 7 or k = 3 – 4 = – 1
∴ The equation of the required line is y = 7 or y = – 1.
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