Unit 4

Unit 4 (parametric, vector, and matrix functions) isn’t on the test and isn’t required. It’s listed as optional content that schools can include if they want to, but there's no info yet about if or when it might be added to the exam. Sounds like most schools are skipping it for now. The College Board typically updates AP course frameworks and exam content based on feedback from educators and institutions, but changes are usually announced well in advance. Given that the AP Precalculus course and exam were first introduced in the 2023–2024 academic year, it's likely that the College Board is focusing on evaluating the initial implementation before considering any significant modifications.