Answer
The slope of the line is $0$.
Work Step by Step
Take first two points from the table.
$(x_1,y_1)=(-1,-6)$ and $(x_2,y_2)=(2,-6)$.
Use slope formula.
$m=\frac{y_2-y_1}{x_2-x_1}$
Substitute all the values.
$m=\frac{-6-(-6)}{2-(-1)}$
Simplify.
$m=\frac{-6+6}{2+1}$
$m=\frac{0}{3}$
$m=0$
Hence, the slope of the line is $0$.
