Help with graphing, will give a medal! (problem below)
\[\frac{ x^3-1 }{ x^2-4 }\]
it might help to rewrite it as \[y=\frac{(x-1)(x^2+x+1)}{(x+2)(x-2)}\]
that way you see that there are vertical asymptotes at \(x=-2\) and at \(x=2\)
I already reached those steps, but I'm having alot of trouble graphing this equation because of the slant asymptote
it might also be useful to divide since the numerator is degree one more than the denominator you will get \(y=x+fractions\)
that means the slant asymptote is the line \(y=x\)
|dw:1398048010539:dw|
did you get y=x from long division?
yes, except i didn't really do it just eyeballed it
\(x^3\) divided by \(x^2\) is \(x\) and the rest is the remainder, which will go to zero as \(x\) goes to infinity but you can do the long division too, just ignore the remainder
ahh, ok. Just curious, can asymptotes ever be passed?
vertical no
horizontal yes
ok, cool, I think I got it from here, thanks for your help!
yw test a few points and you will see what it looks like has to respect those asymptotes
ok thank you again :)
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