can someone explain how u know if a graph is many to many or one to one or one to many etc. how do u know by just looking at points?
also for this q I don't understand why B is many to many and C isnt. I was thinking could it be bc if u do line test so if it crosses once for C (hence it is not a function so it cant be one to many) but can someone explain this clearly.
also for this q I don't understand why B is many to many and C isnt. I was thinking could it be bc if u do line test so if it crosses once for C (hence it is not a function so it cant be one to many) but can someone explain this clearly.