Question

Determine as cordenadas do vértice das parábolas a) y= 2x2-5 b) y=2x2

Answer 1

a) Xv=-b/2a=0/2.2=0/4=0
YV=-[(b)²-4ac]/4a
yv=-[(0)²-4(2)(-5)]/4.2
yv=-[0+40]/8=-40/8=-5
Coordenada do vértice V(0,-5)

b) V(0,0)