Answer:
m = 0/-1 or 0 (horizontal slope)
Step-by-step explanation:
Given points (-17, 12) and (-18, 12):
Let x1 = -17
x2 = -18
y1 = 12
y2 = 12
We can use the following slope formula:
[tex]m = \frac{y2 - y1}{x2 - x1} = \frac{12 - 12}{-18 - 17} = \frac{0}{-1} = 0[/tex]
Since the slope, m = 0, then it is a horizontal slope.
