#### Answer

Refer to the blue graph below.

#### Work Step by Step

RECALL:
The function $y=f(x)-c$ involves a vertical shift of $c$ downward of the parent function $f(x)$ when $c \gt 0$.
The given function is in the same format as the equation above, and has $c=4$.
This means that the graph of $y=x^2-4$ involves a vertical shift of $4$ units downward 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 4 units downward.
(Refer to the blue graph in the attached image above.)