# How do you find the slope for (1,2) (3,-4)?

color(brown)("Slope of given line is " m = -3
$\left({x}_{1} , {y}_{1}\right) = \left(1 , 2\right) , \left({x}_{2} , {y}_{2}\right) = \left(3 , - 4\right)$
$S l o p e \text{ } m = \frac{{y}_{2} - {y}_{1}}{{x}_{2} - {x}_{1}}$
$m = \frac{- 4 - 2}{3 - 1} = - \frac{6}{2} = - 3$