Q: Do vertical lines always have an undefined slope?

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a slope of zero. horizontal is undefined

No, vertical lines have an undefined slope.

The slope of any vertical Line is undefined because anything divided by zero is undefined.

No, the slope is undefined

When the slope is undefined, you know the line has to be vertical. Vertical lines only have an x in their equations. When you have the coordinates (2,4) with a vertical line, the equation for the slope intercept AND standard form would be the same thing: x=2

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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.

No. The slope of a horizontal line is zero. The slope of a vertical line is undefined.

a slope of zero. horizontal is undefined

No, vertical lines have an undefined slope.

The slope of a vertical line is undefined. It either slants straight up or straight down-- you can not say which. The formula for slope does not work in this case because the denominator is zero.

When the lines are horizontal and vertical. (slope of zero) (undefined slope)

An undefined slope is vertical.

The slope of a vertical line is undefined. The slope of a horizontal line is 0. Hope this helps.

Undefined slopes belong to lines that are vertical. These lines do not cross the y-axis, but do cross the x-axis. Therefore, the equation for these lines are always: x = # (where # is the value at which the line is crossing the x-axis).

A vertical line has an undefined slope.

It would be a undefined slope.There are four types of slope:Postive slope (when lines go uphill from left to right)Negative slope (when lines go downhill from left to right)Zero slope (when lines are horizontal)Undefined slope (when lines are vertical)

Yes. For example, the lines x=7, x=-1, and x=145 all have an undefined slope; they are all vertical.