Respuesta :
Answer:
D). Zero
Step-by-step explanation:
Whenever a line is y = a number (ex. y = 5, y = 1.2, y = -1, y = -2.1), the slope will always be zero
D. Zero
When the line is horizontal, it’s not moving, so the slope is 0
When the line is horizontal, it’s not moving, so the slope is 0