# What is a horizontal asymptote on a graph?

## What is a horizontal asymptote on a graph?

A horizontal asymptote is a horizontal line that is not part of a graph of a function but guides it for x-values. “far” to the right and/or “far” to the left. The graph may cross it but eventually, for large enough or small.

### How do you find the vertical asymptote of a graph?

Vertical asymptotes can be found by solving the equation n(x) = 0 where n(x) is the denominator of the function ( note: this only applies if the numerator t(x) is not zero for the same x value). Find the asymptotes for the function . The graph has a vertical asymptote with the equation x = 1.

#### What is a vertical asymptote on a graph?

A vertical asymptote is a vertical line that guides the graph of the function but is not part of it. It can never be crossed by the graph because it occurs at the x-value that is not in the domain of the function. A function may have more than one vertical asymptote.

What is a horizontal asymptote in calculus?

A horizontal asymptote is a horizontal line that the graph of a function approaches, but never touches as x approaches negative or positive infinity. If f (x) = L or f (x) = L, then the line y = L is a horiztonal asymptote of the function f.

How do you find vertical asymptotes in calculus?

To find the vertical asymptote(s) of a rational function, simply set the denominator equal to 0 and solve for x.

## What are the rules for vertical asymptotes?

To determine the vertical asymptotes of a rational function, all you need to do is to set the denominator equal to zero and solve. Vertical asymptotes occur where the denominator is zero. Remember, division by zero is a no-no. Because you can’t have division by zero, the resultant graph thus avoids those areas.

### Is vertical asymptote top or bottom?

Therefore, the vertical asymptotes for a function are the values of x that make the bottom zero, BUT not the top.

#### How do you graph vertical and horizontal asymptotes?

The line x=a is a vertical asymptote if the graph increases or decreases without bound on one or both sides of the line as x moves in closer and closer to x=a . The line y=b is a horizontal asymptote if the graph approaches y=b as x increases or decreases without bound.