Respuesta :

sqdancefan

9514 1404 393

Answer:

  0

Step-by-step explanation:

The slope can be found using the slope formula:

  m = (y2 -y1)/(x2 -x1)

  m = (4 -4)/(-9-3) = 0/-12 = 0

The slope of the line is zero. It is a horizontal line (y=4).