Find all values of the variable for which the rational expression is undefined.
-$\frac { 19 } { x - 9 }$
A) 19
B) $- 9$
C) 9
D) 0

Question

Quizplus · Accepted Answer

The given rational expression is undefined when the denominator is equal to 0 because division by 0 is undefined.
So, the expression is undefined for x - 9 = 0
Solving for x, we get x = 9
Therefore, the only value of x for which the rational expression is undefined is x = 9. Hence, the best choice is C).

Find All Values of the Variable for Which the Rational 19x−9\frac { 19 } { x - 9 }x−919​

Find All Values of the Variable for Which the Rational $\frac { 19 } { x - 9 }$