Respuesta :

Hi!

Step-by-step explanation:

[tex]SLOPE=\frac{Y_2-Y_1}{X_2-X_1}=\frac{RISE}{RUN}[/tex]

[tex]\frac{(-18)-(-18)}{(-15)-12}=\frac{0}{-27}=0[/tex]

Slope is 0.

The answer is 0.

Hope this helps!

Have a nice day! :)

:D

-Charlie

Thank you!