Question:medium

If the line \( (3x + 14y + 7) + k(5x + 7y + 6) = 0 \) is perpendicular to x-axis then the value of \( k \) is

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A line perpendicular to x-axis is vertical, so eliminate \( y \)-term by setting its coefficient to zero.

Updated On: May 6, 2026

\( -2 \)
\( 2 \)
\( -\frac{3}{5} \)
\( \frac{1}{3} \)

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The Correct Option is A

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