# Algebra 2

posted by
**Lily**
.

Find a value(s) that makes the expression

y^2 - 16

---------- undefined.

y^2 + 16

y=4i?

posted by
**Lily**
.

Find a value(s) that makes the expression

y^2 - 16

---------- undefined.

y^2 + 16

y=4i?