If a question asks for the minimum or maximum value of a quadratic function, it is always asking for the y-coordinate of the vertex. If you can’t remember the vertex formula (
Harder statistics questions often focus on and Margin of Error . hard sat questions math
While most of the SAT focuses on linear equations, the "hard" versions involve systems of equations with no solution, infinite solutions, or constants that require deep conceptual knowledge. If a question asks for the minimum or