Respuesta :

devishri1977

Answer:

r = 14

Step-by-step explanation:

Slope = [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\[/tex]

[tex]\frac{-4-r}{8-2}= -3 \\\\\frac{-4 - r}{6} = - 3[/tex]

Cross multiply,

-4 - r = -3*6

-4 - r = -18

-4  = - 18 + r

-4 + 18 = r

r = 14

aidanasherstephenss

Answer:r = 14

Step-by-step explanation: