Предмет: Математика, автор: neseretmarina318

Знайдіть множину значень функції y=x²+3x+15

Ответы

Автор ответа: plus3809725276
4

Графиком функции является парабола. Находим координаты вершины параболы

x₀ = -b/2a = -3/2 = -1.5

y₀ = (-1.5)² + 3 * (-1.5) + 15 = 12.75

Так как ветви параболы направлены вверх, то вершина параболы достигает наименьшего значения, следовательно, множество значений функции E(y) = [12.75; +∞)

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