Multiple Choice Please select the best answer and click subm

Multiple Choice: Please select the best answer and click \"submit.\" For what value of x is the rational expression below undefined? 3x - 12/9 - x 9 -9 4 -4

Solution

solution :

For this question, you should recall that a rational expression is undefined when the denominator equals zero as shown below:

9 - x = 0

x = 9 <==== FINAL ANSWER ( option number A)