Question

Determine o vértice das parábolas referentes às dadas por:

a) h (x)=-x-2x+8

b) i (x)=x-2x-8

c) j (x)=x+2x-3

d) k (x)=x-4x+4

Answer 1

Resposta:

a) Xv= -b/a = 2

Yv= c/a =8

b) Xv= 2

Yv= -8

c) Xv= -2

Yv= -3

d) Xv= 4

Yv=4