Question

as coordenadas da vértice dada pela funçao y= - x^2+ 9x - 6:
a) (-4,5;14,25)
b) (4,5; -14,25)
c) (-4,5; -14,25)
d) (4,5;14,25)
e) (4;14)

Answer 1

Resposta:

Vertice de x =-b/2a= -9/-2=4,5

vertice de y= -delta/4a= -(81-24)/-4= -57/-4=14,25