How to state an equation of rational functions that has Asymptotes?

In summary, a rational function is a function that can be written as the ratio of two polynomials, with a non-zero denominator. Asymptotes are lines that the function approaches but never touches, and can be either horizontal or vertical. To find the asymptotes of a rational function, set the denominator equal to zero and solve for the variable. A rational function can have multiple asymptotes, including both vertical and horizontal. It can also have a slant or oblique asymptote when the degree of the numerator is one more than the degree of the denominator, which is found by using long division.
  • #1
NYH
1
0
How to state the equations of a rational functions with the following asymptotes?

(1)x=2, y=-3

(2)y=0, x=4

(3)y=0
 
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  • #2
NYH said:
How to state the equations of a rational functions with the following asymptotes?

(1)x=2, y=-3

(2)y=0, x=4

(3)y=0
Welcome NYH,
It's not clear what you ask. There can be several rational functions with two common asymptotes & the classification would be difficult.
The simplest curve for {x=h,y=k} would be the hyperbola (x-h)(y-k) =1.
For (3) , y=0 itself is the simplest.
 

What is a rational function?

A rational function is a function that can be written as the ratio of two polynomials, where the denominator is not equal to zero.

What are asymptotes?

Asymptotes are lines that a rational function approaches but never touches. They can be either horizontal or vertical.

How do I find the asymptotes of a rational function?

To find the asymptotes of a rational function, set the denominator equal to zero and solve for the variable. The resulting values will be the vertical asymptotes. To find the horizontal asymptote, compare the degrees of the numerator and denominator. If the degree of the numerator is less than the degree of the denominator, the horizontal asymptote is y=0. If the degrees are equal, the horizontal asymptote is the ratio of the leading coefficients of the numerator and denominator.

Can a rational function have more than one asymptote?

Yes, a rational function can have multiple asymptotes. It can have both vertical and horizontal asymptotes, and it can also have multiple of each type.

Can a rational function have a slant asymptote?

Yes, a rational function can have a slant or oblique asymptote when the degree of the numerator is exactly one more than the degree of the denominator. In this case, the slant asymptote is found by dividing the numerator by the denominator using long division.

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