$\"\"$

The line equation of point-slope form is $\"\"$ , where m is the slope and $\"\"$ is a given point on a nonvertical line.

The equation of a line that passes through the origin $\"\"$ . $\"\"$

Now substitute $\"\"$ and $\"\"$ in point-slope form equation.

$\"\"$

The line equation in point- slope form is $\"\"$ .