no slope – undefined
Find the slope.
In mathematics, the slope of a line is defined as the ratio of the change in the y-coordinate (vertical) to the change in the x-coordinate (horizontal) between any two points on the line.
However, if there is no change in the x-coordinate (horizontal) between any two points on a line, then the slope of that line is undefined.
This is because, in this case, there is no denominator for the ratio, which means that the slope is not defined and cannot be calculated.
In practice, lines with undefined slopes are vertical lines, and they are perpendicular to the horizontal axis. They are characterized by having an x-coordinate that is constant throughout the entire line, and every point on the line has the same x-coordinate value.
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