Determine the value or values of the variable where the expression is defined.
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A) all real numbers except x = 4, x= -4
C) all real numbers except x = 16
D) all real numbers except x = 4

Question

Determine the value or values of the variable where the expression is defined.
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A) all real numbers except x = 4, x= -4 
C) all real numbers except x = 16 
D) all real numbers except x = 4

Quizplus · Accepted Answer

The expression includes a fraction with a denominator that can't be zero. Therefore, the expression is undefined when x = 4 or x = -4. Other than that, the expression is defined for all real numbers. Thus, the answer is A.

Determine the Value or Values of the Variable Where the Expression