A horizontal line has _________ slope.
zero slope
A horizontal line has a slope of 0.
A horizontal line has a slope of 0.
To understand why, you need to know what slope represents. Slope is a measure of how steep a line is. It is defined as the change in the y-coordinate divided by the change in the x-coordinate between two points on the line.
For a horizontal line, all points on the line have the same y-coordinate. This means there is no change in the y-coordinate as you move along the line. Therefore, the numerator of the slope formula is always 0.
The denominator of the slope formula represents the change in the x-coordinate. Since there is a change in the x-coordinate for every point on a horizontal line, the denominator is never 0.
Dividing 0 by any non-zero number will always result in 0. Therefore, the slope of a horizontal line is always 0.