# Thread: vertical asymptotes

1. ## vertical asymptotes

does this mean the function equals 0 at 1 and -2??

2. ## Re: vertical asymptotes

Originally Posted by vegasgunner

does this mean the function equals 0 at 1 and -2??
no. Vertical asymptotes means the function heads off to plus or minus infinity at those points.

3. ## Re: vertical asymptotes

Vertical asymptotes, for rational functions, occur where the denominator is 0. Perhaps that is what you intended. Further, a quadratic of the form $\displaystyle x^2+ ax+ b$ is 0 at $\displaystyle x= x_0$ and $\displaystyle x= x_1$ if and only if $\displaystyle x^2+ ax+ b= (x- x_0)(x- x_1)$.