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Line Parallel to the Coordinate Axes

The equation ...

Question

The equation of the x-axis is
(a) x = 0
(b) y = 0
(c) x = y
(d) x + y = 0

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Solution

Since, the y-coordinate of any point on x-axis is always 0.

So, the equation of the x-axis is y = 0.

Hence, the correct option is (b).

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