Question

Y+3/y-1 non-permissible replacement for y

Answer 1

y = 1

Explanation:

Given the rational function

`(y+3)/(y-1)`

The denominator cannot be zero as this would make the function undefined. Equating the denominator to zero and solving gives the value that y cannot be.

solve : y - 1 = 0 ⇒ y = 1 ← restricted value