# 10 how many horizontal asymptotes can a function have Ideas Contents

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umber of horizontal asymptotes of a Rational function

The maximum number of horizontal asymptotes a Rational function can have is 1 according to Thomas calculus 14th edition.

The only reasoning I could come up with is:

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given a function f(x)/g(x), if the degree of f(x) is one more than g(x) , then it will have an oblique asymptote, if it is two or more than the degree of g(x) then no horizontal asymptotes.
if the degree of g(x) is more than that of f(x) then the only horizontal asymptote possible is y=0.

This reasoning does not seem concrete enough, can somebody explain exactly why a rational function have at most one horizontal asymptote.

## Extra Information About how many horizontal asymptotes can a function have That You May Find Interested

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### Maximum Number of horizontal asymptotes of a Rational … • Author: math.stackexchange.com

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• Sumary: The maximum number of horizontal asymptotes a Rational function can have is 1 according to Thomas calculus 14th edition. The only reasoning I could come up with is: given a function f(x)/g(x), if …

• Matching Result: The maximum number of horizontal asymptotes a Rational function can have is 1 according to Thomas calculus 14th edition.

• Intro: Maximum Number of horizontal asymptotes of a Rational function The maximum number of horizontal asymptotes a Rational function can have is 1 according to Thomas calculus 14th edition. The only reasoning I could come up with is: given a function f(x)/g(x), if the degree of f(x) is one more than…

### Rules | Finding Horizontal Asymptote – Cuemath • Author: cuemath.com

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• Sumary: The horizontal asymptote is a horizontal line to which the graph of the function is very close to. The horizontal asymptote of a function y = f(x) is obtained by finding its limit as x tends to ∞ or…

• Matching Result: A function may or may not have a horizontal asymptote. But the maximum number of asymptotes that a function can have is 2. i.e., a function can have 0, 1, …

• Intro: Horizontal Asymptote – Rules | Finding Horizontal Asymptote The horizontal asymptote of a function is a horizontal line to which the graph of the function appears to coincide with but it doesn’t actually coincide. The horizontal asymptote is used to determine the end behavior of the function. Let us learn…
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### Finding Asymptotes – Milefoot • Author: milefoot.com

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• Sumary: We use MathJax

• Matching Result: A function can have at most two oblique linear asymptotes. Furthermore, a function cannot have more than 2 asymptotes that are either horizontal or oblique …

• Intro: Finding Asymptotes We use MathJax Many functions exhibit asymptotic behavior. Graphically, that is to say that their graph approaches some other geometric object (usually a line) as the graph of the function heads away from the area around the origin. In other words, asymptotic behavior involves limits, since limits are…

## Frequently Asked Questions About how many horizontal asymptotes can a function have

If you have questions that need to be answered about the topic how many horizontal asymptotes can a function have, then this section may help you solve it.

### A function may have up to three horizontal asymptotes.

The definition indicates that the graph of f is very near the horizontal line y = L for large (positive or negative) values of x. A function can have a maximum of two different horizontal asymptotes. Horizontal asymptotes are closely related to limits at infinity.

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### How can you tell how many asymptotes are horizontal in a function?

There are three possible horizontal asymptotes, and they can be found by substituting a large number (such as 1,000,000) for x and estimating y. Let N be the degree of the numerator and D be the degree of the denominator. If N D, then the horizontal asymptote is y = 0.

### How many asymptotes, both vertical and horizontal, can a function have?

A graph can have both a vertical and a slant asymptote, but it CANNOT have both a horizontal and slant asymptote. You can only have 0 or 1 slant asymptote.

### Can there be more than two vertical asymptotes for a function?

Similar to holes, vertical asymptotes also occur at values that make the denominator of the function zero, and more complicated rational functions may have multiple vertical asymptotes, which are very important properties of the function.

### When is a horizontal asymptote not possible?

There are no horizontal asymptotes if the degree of the denominator is less than the degree of the numerator, and y=0 is a horizontal asymptote if the degree of the denominator is greater than the degree of the numerator.

### A function could possibly lack horizontal asymptotes.

If the degree of the denominator, Q(x), is greater than the degree of the numerator, P(x), then the rational function f(x) = P(x) / Q(x) in lowest terms does not have any horizontal asymptotes.

### Can there be more than one horizontal asymptote for a rational function?

There may be zero, one, or two horizontal asymptotes for a function, but never more than two.

### Which types of functions are capable of horizontal asymptotes?

quotient functions with larger denominators than numerators when x is a large positive or large negative number.