Calculus Examples

$lim_{x \to 9} \frac{x - 25}{x^{2} - 18 x + 81}$

Step 1

Since the numerator is negative and the denominator $x^{2} - 18 x + 81$ approaches zero and is greater than zero for $x$ near $9$ on both sides, the function decreases without bound.

$- \infty$