Minimum eligibility for frosh admission includes math to geometry and algebra 2 (note: algebra 2 validates algebra 1), or integrated math courses with equivalent content.
However, due to the level of competition, it is best to complete precalculus at least. If you complete precalculus in 11th grade or earlier, it is best to take calculus if available to you, particularly if your intended major may require calculus (e.g. any engineering, any science, economics, business, architecture).