Question

Dada a funcao quadratica f(x)=-x+5+6, calcule

Answer 1

Δ=5²-4.(-1).6

Δ=25+24

Δ=49

X1=-5+7/-2

X1=2/-2

X1=-1

X2=-5-7/-2

X2=-12/-2

X2=6, AS RAIZES SÃP -1 E 6

VERTICES

XV=-5/2.(-1)

XV=-5/-2

XV=5/2

YV=-49/4.(-1)

YV=-49/-4

YV=49/4

V=5/2 e 49/4

A parabola é para baixo∩