How do you write the equation of a line in point slope form and slope intercept form given points (4, -2) (9, -8)?

$\left[s l o p e\right] \left(h \texttt{p} : / s o c r a t i c . \mathmr{and} \frac{g}{a} l \ge b r \frac{a}{g} r a p h s - o f - l \in e a r - e q u a t i o n s - \mathmr{and} - f u n c t i o n \frac{s}{s} l o p e\right) : \frac{y 2 - y 1}{x 1 + x 2} = \left(\frac{- 8 - \left(- 2\right)}{9 - 4}\right) = - \frac{6}{5}$
equation: $y = \frac{- 6 x}{5} + b$