# How do you find the slope for (2, -10) (-1, 5)?

You divide the change in $y$ by the corresponding change in $x$
Slope=$\frac{\Delta y}{\Delta x} = \frac{{y}_{2} - {y}_{1}}{{x}_{2} - {x}_{1}} = \frac{5 - \left(- 10\right)}{- 1 - 2} = \frac{15}{- 3} = - 5$