 # Quick Answer: How Do You Know If A Slope Is Undefined?

## How do I find the slope of the line?

The slope of a line characterizes the direction of a line.

To find the slope, you divide the difference of the y-coordinates of 2 points on a line by the difference of the x-coordinates of those same 2 points ..

## When slope is undefined What is the equation of the line?

Explanation: An undefined slope indicates that we have a vertical line parallel to the y-axis and passing through all points in the plane with an x-coordinate = constant ( c) The equation is written in the form x = c.

## Can you have an undefined slope?

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

## What do you do when the slope is undefined?

If the slope of a line is undefined, then the line is a vertical line, so it cannot be written in slope-intercept form, but it can be written in the form: x=a , where a is a constant. If the line has an undefined slope and passes through the point (2,3) , then the equation of the line is x=2 .

## Is the slope of any linear function undefined?

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).

## What does 0 slope look like?

Put simply, a zero slope is perfectly flat in the horizontal direction. The equation of a line with zero slope will not have an x in it. It will look like ‘y = something.

## What does a positive slope look like?

A positive slope means that two variables are positively related—that is, when x increases, so does y, and when x decreases, y also decreases. Graphically, a positive slope means that as a line on the line graph moves from left to right, the line rises.

## How do you know if a slope is zero or undefined?

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). because division by zero is an undefined operation.

## What is an example of an undefined slope?

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.

## What happens when the slope is undefined?

An undefined slope (or an infinitely large slope) is the slope of a vertical line! The x-coordinate never changes no matter what the y-coordinate is! There is no run!

## What is the Y intercept of the slope is undefined?

As shown above, whenever you have a vertical line your slope is undefined. Now let’s look at the y-intercept. Looking at the graph, you can see that this graph never crosses the y-axis, therefore there is no y-intercept either.