Respuesta :

SoccerGirl920
Here is an image of what the graph should look like.
Hope this helped!
Ver imagen SoccerGirl920
bcalle
Vertex formula:
x = -b/2a
x = -8/4
x = -2
Plug -2 in for x and solve for y
y = 2(-2)^2 + 8(-2) -3
y = 8 -16 -3
y = -11
Vertex (-2, -11)