PLEASE HELP!
1) Find the rational function for the following graph.
LINK to graph:
http://imageshack.us/photo/my-images/69/20130408170236.jpg/

Question

PLEASE HELP!
1) Find the rational function for the following graph.
LINK to graph:
http://imageshack.us/photo/my-images/69/20130408170236.jpg/

anonymous · Answer

vertical asymptote at $x=-2$ and $x=2$ so denominator could be 
$$(x-2)(x+2)=x^2-4$$

anonymous · Answer

horizontal asymptote at $y=2$ so the numerator has the same degree as the denominator, and the leading coefficient should be 2

anonymous · Answer

so it might be 
$$f(x)=\frac{2x^2}{x^2-4}$$

anonymous · Answer

anonymous · Answer

hmm that is not quite right

anonymous · Answer

this one has zeros at $-1$ and $1$

anonymous · Answer

try 
$$f(x)=\frac{2(x^2-1)}{x^2-4}$$ that will make the zeros where you want them

anonymous · Answer

Oh I see! Yea putting it in shows the form. Thank you so much!!!

anonymous · Answer

anonymous · Answer

yw