Good question. They have infinite slopes.
Incidentally, vertical lines are not functions in the formal sense. One x value is mapped on to an infinite number of y values. A function requires that each x maps on to only one y value.
The slope of a vertical line is undefined. This is because the slope is the rise divided by the run and a vertical line has a run of 0. Since we cannot divide by zero, the slope is undefined.
if the slope is 0, the line is horizontal.
Vertical lines always have an undefined slope. Slope for y = f(x) is given by :slope = dy/dxdx is zero at any point along a vertical line, making the slope undefined along a vertical line.
The slope of a vertical line is undefined and so there cannot be a slope-intercept form of the equation.
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
A vertical line has a slope of infinity.
The slope of a vertical line is undefined. Horizontal slope is 0.
A line with slope of zero is horizontal. A line with no slope is vertical because slope is undefined on a vertical line.
A vertical line has an undefined slope. For the line to be parallel to a vertical line, the slopes would have to be the same. Therefore, the line parallel to a vertical line also has an undefined slope.
a vertical line has an undefined slope, while a horizontal slope has a slope of zero.
The slope of a line becomes extremely large in magnitude as the line approaches being vertical;and is undefined or infinite for a truly vertical line.
Vertical. Te horizontal like has zero slope ( no slope) and the vertical line has infinite (very very high) slope
A vertical line HAS NO slope! The slope is undefined in this case.
An undefined slope is vertical.
The slope of a vertical line is not defined.
run as in slope of a line is zero . horizontal lines have no slope and vertical lines have a slope of zero
The slope of a line is undefined if the line is vertical.