Question

Write the equation of a line passing through the point $(0,3)$ and parallel to $x-axis.$

Answer 1

Finding the equation of the line passing through $\mathbf{(}\mathbf{0}\mathbf{,}\mathbf{3}\mathbf{)}$:

Equation of any line passing through a point $(0,a)$ and parallel to $x-axis$ is given in the form $y=a.$

where $a$ is the $y$ coordinate.

Here, the line is passing through the point $(0,3)$ and parallel to $x-axis.$

$\Rightarrow y=3$

Hence, the equation of the line passing through $(0,3)$ and parallel to $x-axis$ is $y=3$ OR $y-3=0.$