To evaluate the function \( f(x) = 4^x + 5 \) at \( x = 2 \):
\[ f(2) = 4^2 + 5 \]
Calculating \( 4^2 \):
\[ 4^2 = 16 \]
Now substituting back into the function:
\[ f(2) = 16 + 5 = 21 \]
So, the correct answer is:
f(2) = 21.
, evaluate the function for f(2)
.(1 point)
Responses
f(2)=11
f of 2 is equal to 11
f(2)=13
f of 2 is equal to 13
f(2)=16
f of 2 is equal to 16
f(2)=21
1 answer
To evaluate the function \( f(x) = 4^x + 5 \) at \( x = 2 \):
\[ f(2) = 4^2 + 5 \]
Calculating \( 4^2 \):
\[ 4^2 = 16 \]
Now substituting back into the function:
\[ f(2) = 16 + 5 = 21 \]
So, the correct answer is:
f(2) = 21.