Question

what is the vertex of the function ?

f(x)=(2x+2^2)+4


a,(2,4)

b,(2,-4)

c,(-2,4)

d,(-2,-4)

Answer 1

check your equation

Answer 2

to find vertex of quadratic equation:
\[y=ax^{2} +bx +c\]
use
\[x = \frac{-b}{2a}\]
then plug that into equation to get y

Answer 3

@NotSObright i fix it now thnks by the way

Answer 4

i think what you meant to write is
\[2(x+2)^{2} +4\]
??
in which case its in vertex form already
(x+2) means shift left 2 ... x=-2
+4 means shift up 4 ... y=4
vertex is (-2,4)

Answer 5

yes @bumbcow thanks