Find the Nonpermissible replacement for y in this expression y-7/y+9

y cannot be - 9

Step-by-step explanation:

The other word is discontinuity

It is what y cannot be

The denominator cannot be zero so

y+9 cannot be zero

y cannot be - 9

Y = - 9 is the non permissible replacement for Y in this expression

Y+9/Y+7

If Y = - 7

You cannot divide by 0. If Y = - 7, the denominator would be 0.

Zero in the denominator is NOT allowed.

Y = - 9 is the non permissible replacement for Y in this expression.