Answer:
0
Step-by-step explanation:
Since given line is parallel to x axis, so it's slope is zero.
Another way:
Line is passing through the points (2, - 1) & (3, - 1)
So,
[tex] slope=\frac{-1-(-1)}{3-2}[/tex]
[tex] slope=\frac{-1+1}{1}[/tex]
[tex] slope=\frac{0}{1}[/tex]
[tex] slope=0[/tex]
