What number is not part of the domain of the function: g (x) = x+2/x-1? how can you tell?

x = 1 is not part of the domain

Step-by-step explanation:

The denominator of g (x) cannot be zero as this would make g (x) undefined. Equating the denominator to zero and solving gives the value that x cannot be.

solve

x - 1 = 0 ⇒ x = 1 ← restricted value