Evaluate the rational function $f ( x ) = \frac { 8 x } { x + 13 }$ at x=-13 and simplify. If this is not possible, state the reason.
A)0
B)-13
C)4
D)-104
E)undefined $\text { (division by } 0 \text { ) }$

Question

Quizplus · Accepted Answer

At x=-13, we get a division by 0 in the denominator of the rational function. Therefore, the function is undefined at x=-13. The correct answer choice is E.

Evaluate the Rational Function f(x)=8xx+13f ( x ) = \frac { 8 x } { x + 13 }f(x)=x+138x​

Evaluate the Rational Function $f ( x ) = \frac { 8 x } { x + 13 }$