What is the horizontal asymptote of the rational function f(x) = (2x^2 + 1) / (x^2 - 4)?

For what value(s) of x does the rational function f(x) = (x - 3) / (x^2 - 9) have a removable discontinuity?

If a rational function has a vertical asymptote at x = a, what must be true about the denominator of the function at x = a?

What is the oblique (slant) asymptote of the rational function f(x) = (x^2 + 2x - 3) / (x - 1)?

Which of the following is a possible graph for f(x)= 1/(x-2)?

Determine the end behavior of f(x) = (x^3 + 2x)/(x^2+1) as x approaches infinity

The x-intercept(s) of the rational function f(x) = (x^2 - 4)/(x + 1) are:

Which statement is always correct about rational functions?

What is the y-intercept of f(x) = (3x+5)/(x^2+1)?

What are the asymptotes of f(x) = (x)/(x-1)?