I want to trade-in my phone but my camera is broke can i ?

No one here works for Apple, so we can't tell if they'll give you ANY credit or not. Typically, they won't take a trade with a phone which has any damage. But you should take it to Apple directly and let them see the phone and they'll tell what if anything they will be willing to do.

If your camera is broken, then you won’t have any value to trade it in. Apple will take it for recycling.