10 articles trouvés pour ce sujet.
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A function with 3 asymptotes |
2012-10-19 |
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rimoshika pose la question :
find a function that have 3 Asymptotic : y=x/y=sinx/x=-1
Penny Nom lui répond. |
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f(x)= (e^x) / [(e^x)+(ex^2)] |
2009-11-10 |
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natalie pose la question :
I'm trying to graph the function, f(x)= (e^x) / (e^x)+(ex^2) [e to the x divided by e to the x plus e times x squared] I know that there aren't any vertical asymptotes, but is there a horizontal asymptote? and also, I'm stuck on finding the concavity for this graph. I tried to find f "(x), but it came out to be really long and I am not sure how to find the x values for f "(x) without using a graphic calculator.
thanks,
natalie
Chris Fisher and Harley Weston lui répond. |
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Graphing Rational Functions |
2008-12-05 |
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Bahra pose la question :
The question in my homework is: Find all vertical, horizontal, and slant
asymptotes, x- and y-intercepts, and symetries, and then graph each
function. Check your work with a graphing calculator.
y=3/x+3 meanng: ( y= 3 over x+3)
Janice Cotcher lui répond. |
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Sketch the graph of the hyperbola and its asymptotes |
2007-03-13 |
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Katrina pose la question :
Given (y-2) ^2 – x^2/4 =1 do the following:
Sketch the graph of the hyperbola and its asymptotes. Label the vertices on the graph
I attached the graph thanks for your help!
Penny Nom lui répond. |
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Vertical asymptotes |
2005-12-05 |
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Kelly pose la question :
X2 - 49
Y= -------------------
X2 + 9x + 20
We are trying to solve this equation to find the vertical asymptote.
Penny Nom lui répond. |
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Asymptotes |
2005-06-06 |
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Abraham pose la question :
What are the equations of all horizontal and vertical asymptotes for the curve y=x/(x(x2-4))(the answer is y=0, x=-2, x=2, but I want to know how to get that algebraically.And why isn't x=0 another asymptote?)
Leeanne Boehm lui répond. |
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0.999..., asymptotes and infinity |
2004-12-17 |
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Mike pose la question :
My Name is Mike and I teach high school. I had a student ask me to explain why .9 repeating is equal to 1. Then he asked me about an asymptote, or why a parabola or any other curve for that matter can continually approach a value (like 1) and yet never attain a value of 1. He is thinking that these two should represent the same concept and yet they contradict each other. Do you have a solid explanation for him? Of by the way he is a 7th grader. Great little thinker!!!!!
Claude Tardif and Harley Weston lui répond. |
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A conic |
2004-08-10 |
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A student pose la question :
My question is about this equation 32x*2 -18y*2 -64x +72y +248 =0
explain why as x goes to the infinity the graph of the conic looks like y= (3/4)X.
What I did to try to find the solution of this problem was to graph and then I thought that maybe trying to find the equation of the asymptotes I could do it, but it was useless -because the equation of the asymptotes is y= +4/3(X-1) -2 and that does not explain why tho conic looks like y=(3/4) x . I would really appreciate your help on this.
Penny Nom lui répond. |
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A hyperbola centered at (0,0) |
2001-12-28 |
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Carla pose la question :
- Find the equation of the hyperbola centered at (0,0) with vertices at (0,3) and (0,-3) that is asymptotic to the lines y=+-5x.
- Find the equation of a hyperbola in standard position foci (1,5) and (1,7) and eccentricity 2.
Peny Nom lui répond. |
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Asymptotes |
2001-11-09 |
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Frank pose la question :
given the function: f(x) = (x2) / (x-1) the correct answer to the limit of f(x) as x approaches infinity is: y = x+1 all math references point to this answer and the method they all use is long division of x-1 into x2 however if one were to multiply both the numerator and denominator by 1/x and then take the limit, one gets: y=x how can the descrepency between the two answers be explained?
Chris Fisher and Penny Nom lui répond. |
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