The slope of a horizontal line is zero. That's because the slope measures how steep the line is, and a flat line is not steep at all and therefore has no slope.
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The slope of a horizontal line is zero.
if the slope is 0, the line is horizontal.
Horizontal lines have a slope of 0.
A slope is 0 if it is a straight horizontal line. A slope is undefined if it is a straight vertical line.
The slope of a horizontal line is zero. It has a slope, but slope = 0 and this makes it different from a vertical line which has a slope that is undefined because you cannot divide 0 over 0 which is how much a vertical line rises and runs.Ways to find slope:(y2-y1)/(x2-x1 )orrise/run