Answer
See the picture below.
Work Step by Step
The parent function is $f(x)=2^x$ (with red) the given function is $g(x)=2^{x+2}-4$ (with blue).
The parent function can be graphed by calculating a few coordinates and connecting them with a smooth curve:
$f(-2)=2^{-2}=\frac{1}{4}$
$f(-1)=2^{-1}=\frac{1}{2}$
$f(0)=2^0=1$
$f(1)=2^1=2$
$f(2)=2^2=4$
For every corresponding x-value the following equation is true: $f(x+2)-4=g(x)$
This means that the graph is translated 2 units to the left left and 4 units down ($g(x)$ involves a horizontal shift of 2 to the left and also a vertical shift of 4 downwards.).
First, the horizontal shift.
We only consider the g(x) function as $g'(x)=2^{x+2}$
For example if $f(0)=1$ in the original $f(x)$, this will be equal to $g'(-2)=f(-2+2)=f(0)=1$.
Here,$ f(0)=g'(-2)$ also, $f(1)=g'(-1)$
We can see that here, each point in the parent function was moved to the left by 2 units.
Second, we translate this $g'(x)$ function to get the originally given function.
Now, the following equation is true: $g'(x)-4=g(x)$ Every $g'(x)$ value will be decreased by 4.
For example if $g'(-2)=1$, this will be translated as $g'(-2)-4=1-4=-3$.
We can see that here, the $g'(x)$ is greater than $g(x)$ for every corresponding x-value by 4.)