# Can an undefined slope be horizontal or vertical?

## Can an undefined slope be horizontal or vertical?

The slope of a line can be positive, negative, zero, or undefined. A horizontal line has slope zero since it does not rise vertically (i.e. y1 − y2 = 0), while a vertical line has undefined slope since it does not run horizontally (i.e. x1 − x2 = 0).

**Is undefined on a graph horizontal or vertical?**

Remember the Slope Formula However, remember these two unique cases: Horizontal lines have a slope of 0 because the vertical change is 0. Vertical lines have an undefined slope because the horizontal change is 0 — you cannot divide a number by 0.

**Does undefined mean vertical?**

The slope of a vertical line is undefined, and can not be found. This is because the denominator of the rise over run fraction is always 0.

### How do you know if a slope is vertical or horizontal?

Note that when a line has a positive slope it rises up left to right. Note that when a line has a negative slope it falls left to right. Note that when a line is horizontal the slope is 0. Note that when the line is vertical the slope is undefined.

**What is a undefined slope?**

The slope of a line is undefined if the line is vertical. If you think of slope as rise over run, then the line rises an infinite amount, or goes straight up, but does not run at all.

**Is a 0 slope undefined?**

Well you know that having a 0 in the denominator is a big no, no. This means the slope is undefined. As shown above, whenever you have a vertical line your slope is undefined.

## What is undefined slope?

What Is an Undefined Slope? The slope of a line is undefined if the line is vertical. If you think of slope as rise over run, then the line rises an infinite amount, or goes straight up, but does not run at all.

**What is an undefined slope example?**

A good real life example of undefined slope is an elevator since an elevator can only move straight up or straight down. It got its name “undefined” from the fact that it is impossible to divide by zero. In general, when the x-values or x-coordinates are the same for both points, the slope is undefined.

**Is a zero slope undefined?**

### Is no slope the same as undefined?

The slope of a vertical line does not exist! This relationship is always true: a vertical line will have no slope, and “the slope is undefined” or “the line has no slope” means that the line is vertical.

**What slope is a vertical line?**

undefined slope

Vertical lines are said to have “undefined slope,” as their slope appears to be some infinitely large, undefined value. See the graphs below that show each of the four slope types.

**Why is slope undefined?**

Mathwords: Undefined Slope. The “slope” of a vertical line. A vertical line has undefined slope because all points on the line have the same x-coordinate. As a result the formula used for slope has a denominator of 0, which makes the slope undefined..

## What type of line has an undefined slope?

The “slope” of a vertical line. A vertical line has undefined slope because all points on the line have the same x-coordinate.

**What is the equation for a line with an undefined slope?**

When an equation has a line with an undefined slope, it means that the line is vertical. As shown above, the equation would’ve been written in slope – intercept form, where ‘m’ represents the slope and ‘b’ represents the y – intercept. However, in this case, the slope is undefined.

**What is the slope of an undefined line?**

A vertical line has undefined slope because all points on the line have the same x-coordinate. As a result the formula used for slope has a denominator of 0, which makes the slope undefined..

### What is an example of an undefined slope?

A good real life example of undefined slope is an elevator. Since there exist no number you can multiply 0 by to get 6, we say that the slope is undefined. Notice that the x-values is the same for both points (x1 = x2 = 1) . This is also the case for all the lines above.