Question

For what values of the variables are the following expressions defined? •18/y

Answer 1

function 18/y is defined for all values of y such that
`y \in R, y\\eq 0`

Explanation:

given data

number = 18/y

solution

in given value 18/y

If y=0, the function will be Undefined.

Because, the function is undefined if its denominator = 0

so that if we determine the function is defined, we will find out for what values the function is undefined and remove it

so, the function 18/y is defined for all values of y such that

`y \in R, y\\eq 0`