Respuesta :
The vertex is at the point where velocity is equal to zero.
dy/dx=6x-12
6x-12=0
6x=12
x=2
y(2)=0 so the vertex is at the point (2,0)
dy/dx=6x-12
6x-12=0
6x=12
x=2
y(2)=0 so the vertex is at the point (2,0)