Respuesta :

the answer is B. 0
when it’s a straight horizontal line, the slope is always going to be zero. It’s only going to undefined if the line is vertical.
Yang100

Answer:

B) 0

Step-by-step explanation:

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

m=(-2-(-2))/(9-3)

m=(-2+2)/6

m=0/6

m=0