[bullfightonmars]

US students don't have graduation exams per-se, there are no standardized tests for graduating.

The final exams High School seniors take are dependent on the curriculum they have chosen and are written/defined by their teachers. The outcome of these tests is reflected in the student's course grades and is reflected in their GPA (Grade Point Average) for their entire High School career.

The SAT or ACT are only used for College/University applications.