which of the following functions is graphed below

Answer:
option B
Step-by-step explanation:
Lets graph each piecewise function and check
y=x^2 + 4, x<2
Make a table
x y=x^2+4
-2 (-2)^2+4 = 8
0 0^2+ 4= 4
2 2^2 + 4= 8
all the above points on the table satisfies the given graph
We have open circle at x=2 and graph on the left side. so x<2
Now make table for y= x+4
x y=x+4
2 y= 6
6 y = 10
all the above points on the table satisfies the given graph
We have closed circle at x=2 and graph on the right side. so x>=2
y=x^2 + 4, x<2
y= x+4, x>=2
Option B is correct