Which of the following equations represents a line parallel to x – axis?

3x + 2 = 0

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3y + 2 = 0

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3x + 2y = 0

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3x - 2y = 0

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Solution

The correct option is B
3y + 2 = 0

A line parallel to the x-axis is of the form y = k
$3 y + 2 = 0, can be written as, y = - \frac{2}{3}$
Thus, 3y + 2 = 0 is parallel to x axis.

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