# How do you find the slope of (-10,-5) and (-8,-7)?

$m = - 1$
$m = \frac{{y}_{2} - {y}_{1}}{{x}_{2} - {x}_{1}} = \frac{- 7 - \left(- 5\right)}{- 8 - \left(- 10\right)} = - \frac{2}{2} = - 1$