Relax

Respuesta :

Answer:

The slope is 0.

Step-by-step explanation:

m = (y2-y1) / (x2 - x1)

m = (-9 - -9) / (6 - -7)

m = ( 0 ) / ( 13 )

m = 0

If the 0 was the denominator, then the slope would be undefined.