To rewrite the logarithmic equation \( \log_2{16} = 4 \) as an exponential equation, we convert it to the form \( b^y = x \), where \( b \) is the base, \( y \) is the logarithm result, and \( x \) is the argument of the logarithm.
In this case:
- Base \( b = 2 \)
- Result \( y = 4 \)
- Argument \( x = 16 \)
Thus, the equivalent exponential form is:
\[ 2^4 = 16 \]
So the correct response is:
\( 2^4 = 16 \).