Question #N373
The function $f(x)$ is defined by $f(x) = \frac{x^2 - 4}{x - 2}$. For what value of $x$ is $f(x)$ undefined?
A. -2
B. 2
C. 4
D. 8
Correct Answer is: B
The function $f(x)$ is undefined when the denominator, $x - 2$, is equal to zero. Solving the equation $x - 2 = 0$, we find that $x = 2$. Therefore, the function is undefined when $x = 2$.