Question

How do you make a limit exist at -1 if the function is undefined at that point?

Answer 1

approach from both sides

Answer 2

agree

Answer 3

How though? I have to write an equation that does that.

Answer 4

Limits don't care if a point is defined. Limits don't need a definition. That's the whole point. It's a limit! It might be an actual value (if it's defined), but that is absolutely not a requirement.

Answer 5

Nice point tkhunny. ^_^