0
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 )
or
rise/run
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What is the equation of a line with a slope of zero?
A horizontal line has a slope of zero. The equation of a horizontal line is y = a.
What is the slope of a line that is parallel to a horizontal line?
Well since the lines are parallel they would have the same slope. And the slope of any horizontal line is 0. The slope of a vertical line is undefined.
What is the equation of a horizontal and a vertical line using standard slope form?
We usually denote the slope of a line as M. Horizontal lines have a slope of zero. Mhorizontal line = 0 Verticle lines have a slope that is undefined. Note that the slope is not infinite, but is undefined. Mvertical line = undefined To write the equation of a horizontal or vertical line, we need to know if it's going to be a slope-intercept form or a point-slope form.
Does a horizontal line has a slope of zero?
Yes, it is true; slope zero is no slope.
What is the slope of the line y equals -5?
That line is horizontal on the graph. Its slope is zero.
