Answer
Refer to the blue graph below.
Work Step by Step
RECALL:
The function $y=f(x)+c$ involves a vertical shift of $c$ upward of the parent function $f(x)$ when $c \gt 0$.
The given function is in the same format as the equation above, and has $c=3$.
This means that the graph of $y=x^2+3$ involves a vertical shift of $3$ units upward of the parent function $y=x^2$
Thus, to graph the given function:
(1) Graph the parent function $y=x^2$ .
(Refer to the red graph in the attached image below)
(2) Shift the parent function 3 units upward.
(Refer to the blue graph in the attached image above.)
(Refer to the attached image in the answer part above for the graph.)