Find Where Undefined/Discontinuous f(x)=(x^2-2x-99)/(x-11)

$f (x) = \frac{x^{2} - 2 x - 99}{x - 11}$

Step 1

Set the denominator in $\frac{x^{2} - 2 x - 99}{x - 11}$ equal to $0$ to find where the expression is undefined.