# Math Help - Vertical asymptote of rational function.

1. ## Vertical asymptote of rational function.

$f(x) = (3x+7)/(4-5x)$
According to my graphing calculator it should be somewhere between 0 and 1. Assuming that I'm supposed to set the denominator equal to 0 and then solve for x, I came up with $x = 4/5$. Is this correct?

Yes.