Question

which value(s) of x will be excluded from the domain of the rational function? y = \frac{x - 3}{x + 4}
4
-3
-4
3

Explanation:

Step1: Recall domain - exclusion rule

The denominator of a rational function cannot be zero.

Step2: Set denominator equal to zero

Set $x + 4=0$.

Step3: Solve for x

Subtract 4 from both sides: $x=-4$.

Answer:

C. -4