What is the vertex of f(x)=(x+3)2+4?

Explanation is in the file

cutt.ly/nz6VGda

Below.

Step-by-step explanation:

f(x)  =  a(x - j)^2  +  k is the standard vertex form where (j, k) is the vertex,

f(x) =     (x + 3)^2 + 4

Comparing this to the standard form we see that:

vertex =  (-3, 4)