Explanation: We can note that the given line has the following equation: y = -1 for any value of x This means that any point on the line would have the coordinate (x , -1)
The slope of the line can be calculated as follows: slope = (y2 - y1) / (x2 - x1)
Now, taking any two general points on the line: (x1 , -1) and (x2 , -1), we can find the slope as follows: slope = (-1 - (-1)) / (x2 - x1) = 0 / (x2 - x1) = 0
Based on the above, we can deduce that: The slope of any line that is parallel to the x-axis is zero.
