# How do you determine the slope of (2,7) and (7,2)?

Apr 1, 2018

We use the slope formula, which saws we divide ${y}_{2} - {y}_{1}$ by ${x}_{2} - {x}_{1}$, or the second coordinate pair minus the first one

$\left(2 , 7\right)$ and $\left(7 , 2\right)$

$\frac{{y}_{2} - {y}_{1}}{{x}_{2} - {x}_{1}}$

$\frac{2 - 7}{7 - 2}$

$\frac{- 5}{5}$

$- 1$