If the teacher said the exam is 10% of your grade than you are probably going to take the hit on your final grade.
If you are trying to get an advanced regents diploma, you will have the opportunity to take the exam as a walk in during summer school. The worse case is that you score high enough to get a waiver.
@Nemesis_Artemis
No colleges really care about the Regents. Most states don’t have them. So, don’t stress about that part.
This is an absolutely false statement. Colleges care. The exam grades are on your transcript. Remember your classroom grade is a snapshot of the 50 minutes second period in Ms./Ms. Smith class. The Regents exam indicates how you measure against your peers across the state who have covered the same work. In ELA/Math your scores will demonstrate if you are not proficient, approaching proficiency, proficient, exceeds, mastery.
Every state has some time of exit exam or exam for accountability measures especially in ELA and Math (in order to get federal funding). The Regents is just the name of the NYS exam (Which is why most states do not have “Regents”, they may call their exam something else).