Equation of Lines Parallel to Axes

(i) Equation of Line Parallel to X-Axis:
Consider l be the straight line which is passing through the point A\left( {0,b} \right) is parallel to X-axis, because this point is lies on the Y-axis and any point on Y-axis whose values of x are zero.


line-equation-parallel-axes

Then the equation of a line parallel to X-axis is given by

\boxed{y  = b}

(ii) Equation of Line Parallel to Y-Axis:
Consider l be the straight line which is passing through the point B\left( {a,0} \right) is parallel to Y-axis, because this point is lies on the X-axis and any point on X-axis whose values of y are zero.


line-equation-parallel-axes-2

Then the equation of a line parallel to Y-axis is given by

\boxed{x  = a}

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