Question

when is the following rational expression undefined? 6d-4
-------
d+2

Answer 1

Answer:

For $d=-2$ rational expression will be undefined.

Step-by-step explanation:

Given function is $\frac{6d-4}{d+2}$

We need to find for what value of variable $d$ this rational expression will be undefined.

The rational expression will be undefined if the denominator of the expression will become zero.

So, let us plug denominator equal to zero.

$d+2=0\\\\Subtracting\ both\ side\ 2\\\\d+2-2=-2\\\\d=-2$

Hence, this rational expression will be undefined if the value of variable $d=-2$.