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Michael17
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Can anyone please explain to me how to find the asymptote of a function?
Your help is much appreciated!
Your help is much appreciated!
HallsofIvy said:You can also have "slant" (or "oblique") asymptotes. For example,
[tex]y= \frac{3x^2- 2}{x- 1}[/tex]
has a vertical asymptote at x= 1 (because then the denominator, x-1, is 0).Also, dividing the numerator by the denominator gives y= 3x+ 3+ 1/(x-1). For very large x, the fraction, 1/(x-1) goes to 0 so the graph approaches the "slant asymptote" y= 3x+ 3.
Could you please explain this a little more clearly?HallsofIvy said:you cannot have both horizontal and slant asymptotes on the same "side" of the graph.
It might be worthy to note that this is the case because both the numerator and denominator have equal factors (x-1)HallsofIvy said:Note that the denominator being 0 does not necessarily mean a vertical asymptote. For example, [tex]y= \frac{x^2- 1}{x- 1}[/itex] has denominator 0 but its graph is just the line y= x+ 1 with a "hole" at (1, 2).
I like your enthusiasm!Unit said:(This is so fun )
Oblique and horizontal asymptotes on the "right hand side" of the graph are determined by how f(x) behaves as x tends to infinity. If there exists an oblique asymptote on the right hand side, then f(x) is going to infinity or negative infinity (for large enough x the graph starts looking like a straight line with a nonzero slope). The horizontal asymptote will exist on the right hand side if and only if f(x) tends to a constant value as x tends to infinity, so you obviously can't have both on the same side.Mentallic said:Could you please explain this a little more clearly?
An asymptote is a line that a curve approaches but never touches. It can be vertical, horizontal, or oblique.
Finding the asymptote can help us understand the behavior of a curve and make predictions about its values at certain points.
To find the asymptote, we can use the limit as x approaches infinity or negative infinity. If the limit goes to a finite number, then that is the asymptote. If the limit goes to infinity, then there is no asymptote.
Yes, a curve can have multiple asymptotes, including a vertical asymptote and a horizontal asymptote.
A vertical asymptote is a line that a curve approaches but can never cross, while a horizontal asymptote is a line that a curve approaches as x approaches infinity or negative infinity.