Question #N991
The function $f(x) = \frac{x^2 - 4}{x - 2}$ is undefined for what value of $x$?
A. -4
B. -2
C. 2
D. 4
Correct Answer is: C
A function is undefined when its denominator equals zero. In this case, the denominator is $x-2$, which equals zero when $x=2$. Therefore, the function is undefined for $x=2$.