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Question
Write the equation of the line: parallel to the X-axis and at a distance of 4 units from 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 = 3 + 4 = 7 or k = 3 − 4 = −1
∴ The equation of the required line is y = 7 or y = −1.
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