Question

Quais são os valores do x vértice e y vértice da equaçao y=10x^2+20x+40?

Answer 1

xV = -b/2a = -20/2.10 = -20/20 = -1
yV = -delta/4a = -(20²-4.10.40)/4.10 = -(400-1600)/40 = -(-1200)/40 = 30
V = (-1; 30)