Question

What are the excluded values of `y=2/(x-5)`?

Answer 1

`x=5`

Explanation:

The excluded values are values that make the equation undefined.

Since this function is a fraction, we have a special rule here. In fractions, we cannot make the denominator equal to `0`, otherwise it makes the fraction undefined.

`:.x-5!=0`

`x!=5`

So, the excluded value here is that `x=5`.