Question

Find the equations to the straight lines passing through the pairs of points. : $(0,-a)$ and $(b,0)$.

Answer 1

The given points are $(0,-a)$ and $(b,0)$

So, the equation of line is given by

$\frac{x}{b}+\frac{y}{-a}=1$

$\Rightarrow ax-by=ab$ is the required equation.