Question

The line passing through the origin and the point $(-3,4)$.

Answer 1

$x_1=0,y_1=0$
$x_2=-3,y_2=4$
$\therefore$ Equation of the line
$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$
$\Rightarrow y-0=\frac{4-0}{-3-0}(x-0)$
$\Rightarrow -3y=4x$
$\Rightarrow 4x+3y=0$