Question

Determine the value for which the function f(u)= -9u+8/ -12u+11 in undefined

Answer 1

`(11)/(12)`

Step-by-step explanation

A fraction becomes undefined when its denominator is equal to 0.

Hence, the given function will be undefined when:

`-12u+11=0`

Solve for u:

`\begin{gathered} -12u=-11 \\ u=(-11)/(-12) \\ u=(11)/(12) \end{gathered}`

That is the value of u for which the function is undefined.