Question

Find the nonpermissible replacement for y in the expression b^2/7b+7

Answer 1

Answer: -1

Explanation:

Answer 2

The non-permissible replacement for y in the expression is -1

Explanation:

we are given

`y=(b^2)/(7b+7)`

we know that

y is undefined when denominator is 0

so, we can set denominator =0

and then we can solve for b

`7b+7=0`

Subtract both sides by 7

`7b+7-7=0-7`

`7b=-7`

Divide both sides by 7

`b=-1`

So,

The non-permissible replacement for y in the expression is -1