Answer:

Explanation:
The slope formula is:

where (x₁, y₁) and (x₂,y₂) are the points on the line.
The points given are (-2,8) and (-22,8). Therefore,

Substitute the values into the formula.

Solve the numerator. Subtract 8 from 8.

Zero divided by any number is zero, so we automatically know the slope is zero.

The slope of the line is 0