The equation of the line perpendicular to the line x – 2y + 3 = 0 and passing through the point (1, -2) is

2x – y = 0

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2x + y = 0

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x – 2y = 0

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x + 2y = 0

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Solution

The correct option is B
2x + y = 0

Required equation of line 2x + y + k = 0 which passes through (1, -2)

K = 0 , therefore the equation is 2x + y = 0

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