Question

Find the equation of the line which is passing through $(0,0)$ with slope $m$.

Answer 1

We know that equation of line passing through point $(x_0,y_0)$ with slope $m$ is
$y-y_0=m(x-x_0)$

Given :
Slope $=m$ and $(x_0,y_0)=(0,0)$
$\Rightarrow (y-0)=m(x-0)$
$\Rightarrow y=mx$
Hence, the required equation of line is $y=mx$.