Question

407. Укажите координаты вершины параболы: a) y = (x-3)²; б) y = 5(x+2); B) y = 3 x² - 7; г) y=-4x² + 5; д) у = х² + 6х +9; e) y = x² - 8x + 16.​

Answer 1

a) y = (x-3)², the vertex is (3,0)

b) y = 5(x+2), the vertex is (-2,0)

c) y = 3x² - 7, the vertex is (0,-7)

d) y = -4x² + 5, the vertex is (0,5)

e) y = x² - 8x + 16, the vertex is (4,4)