Respuesta :

tagoddard

Answer:

use the slope equation: (y2-y1) / (x2-x1)

(3 -(-6) / (12-12) (plug in the values)

9/0 the slope is undefined anytime there's a denominator of 0

Step-by-step explanation:

I hope this helps :)

blackbelturjit

Answer:

Undefined

Step-by-step explanation:

Slope=y2-y1/x2-x1

3-(-6)=3+6

9

12-12=0

9/0 is undefined