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Question
Find the equation of the line passing through the points P(2, 1) and Q(2, –1)
Solution
The required line passes through the points P(2, 1) and Q(2, – 1).
Since both, the given points have the same x co-ordinates i.e. 2,
the given points lie on the line x = 2.
∴ The equation of the required line is x = 2.
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