What Are the Asymptotes for This Equation?

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In summary, the conversation discusses finding a possible equation with asymptotes x=3 and y=5. After some trial and error, the equation y=5x/(x-3) is proposed as a solution. Another possible equation is suggested as y = 1/(x-3) + 5. The conversation also mentions the use of graph manipulation to find solutions.
  • #1
MiNiWolF
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Homework Statement


Make an example of a possible equation whose graph got the asymptotes:
a)
x=3 and y=5
b)
x=-2 and y=3


Homework Equations





The Attempt at a Solution


I have no idea but I'm ready to hear those kind of solutions you might suggest me
 
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  • #2
you know the asymptote of y = 1/x ? Try moving that graph around
 
  • #3
willem2 said:
you know the asymptote of y = 1/x ? Try moving that graph around

I've found out a possible solution if we state that x=3 and y=5, then we can say that
x-a=0
x-3=0
x=3
then we can put our value in and put it under our fraction so we now got:

( )/3-x

Nothing in the parantese:
Now we need the y asymptote:

y=5
f(0)=5 to make this statement true:
We need to say that:
(5x/x)/(3/x - x/x)
x-> eternity
so 3/x will be close to zero and in math = 0
so we got 5/1 = 5 this equals true. So our possible equation for our asymptotes:

5x/(3-x).

Is there some errors in my solving this equation or is this a possible answer?
 
  • #4
Edit: Had a wrong function with the wrong sign; mrkuo is correct.

Another one which came to mind first was 1/(x-3) + 5. This is just a shifting of the graph of 1/x.
 
Last edited:
  • #5
Unfortunately,

y=5x/(3-x)

will not produce the asymptotes x=3 and y=5, rather, x=3 and y= negative 5.

Use y = 5x/(x-3) instead. Previous poster's answer works just as well.
 

1. What is an asymptote?

An asymptote is a line that a graph approaches but never touches. It can be either a horizontal, vertical, or oblique line.

2. How do you find the asymptotes of a function?

To find the asymptotes of a function, you must first determine the degree of the numerator and denominator of the function. A horizontal asymptote is found by dividing the leading coefficients of the numerator and denominator. A vertical asymptote occurs when the denominator of the function equals zero. An oblique asymptote occurs when the degree of the numerator is exactly one higher than the degree of the denominator.

3. Can a function have more than one asymptote?

Yes, a function can have multiple asymptotes. It is possible for a function to have both horizontal and vertical asymptotes, as well as multiple vertical asymptotes.

4. What is the significance of asymptotes in a function?

Asymptotes are important in understanding the behavior of a function. They can help determine the end behavior of a graph, and can also indicate any points of discontinuity.

5. How do asymptotes affect the domain and range of a function?

Asymptotes do not affect the domain of a function, but they can affect the range. If a function has a horizontal asymptote, the range will be limited to the values that the function approaches as x approaches positive or negative infinity. Similarly, vertical asymptotes can restrict the range of a function to avoid dividing by zero.

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