Home / This is a quadratic opening downward. Its maximum occurs at the vertex $ y = \frac{-b}{2a} = \frac{-2}{-2} = 1 $. Evaluating at $ y = 1 $:This is a quadratic opening downward. Its maximum occurs at the vertex $ y = \frac{-b}{2a} = \frac{-2}{-2} = 1 $. Evaluating at $ y = 1 $:February 22, 2026