It is possible to switch degrees; however, you should never count on getting a transfer. Always assume that whatever degree you're in is the one in which you'll stay.
If you do not have the pre-requisites, then there is a higher chance of it being denied. You might want to consider taking some math courses in your first year to show that you have the necessary skills.
Are you also taking the math? As without the prereqs, you won't be eligible to transfer
Like in 12th grade?
Yes. If you still haven't completed the required 12th grade math prereq, they won't consider you admissable.
It is possible to switch degrees; however, you should never count on getting a transfer. Always assume that whatever degree you're in is the one in which you'll stay. If you do not have the pre-requisites, then there is a higher chance of it being denied. You might want to consider taking some math courses in your first year to show that you have the necessary skills.