To determine how many people will become zombies after 11 minutes using the model you provided, where the equation is \( y = 2^x \), we can simply substitute \( x = 11 \) into the equation.
Calculating this gives:
\[ y = 2^{11} \]
Now we compute \( 2^{11} \):
\[ 2^{11} = 2048 \]
So, after 11 minutes, there would be 2048 zombies (or infected people) according to the model you've described.