Question #N15
A function is defined by $f(x)= \frac{x^2 - 4}{x - 2}$. For what value of x is the function undefined?
A. -2
B. 0
C. 2
D. 4
Correct Answer is: C
A function is undefined when the denominator is zero. The denominator of this function, x - 2, is equal to zero when x = 2. Therefore, the function is undefined when x = 2.