Given the function, f(x) = 1/2 (x +7)^2 + 4 check all the transformations that occurred from the graph of the parent function:

a) up 7 units
b) up 4 units
c) down 7 units
d) down 4 units
e) left 7 units
f) left 4 units
g) right 7 units
h) right 4 units
i) vertical stretch
j) vertical compression
k) reflection x-axis
l) reflection y-axis

a) up 7 units

b) up 4 units