Question

the line is parallel to y axis only if its ____ coordinate is zero.​

Answer 1

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x - axis

Answer 2

Answer:

Thus, if P(x, y) is any point on AB, thenx = a. Hence, the equation of a straightline parallel to y-axis at a distance a from it is x = a. The equation of y-axisis x = 0, since, y-axis is a parallel to itself at a distance 0 from it.