Unit 7 Sample Work Retake

Question

4 of 154 of 15 Items
Question
Given f(x)-3^x-4 , evaluate the function for f(2) .
Responses

f of 2 is equal to 1

f of 2 is equal to 2

f of 2 is equal to 9

Answer 1

To evaluate the function \( f(x) = 3^x - 4 \) at \( x = 2 \), we can substitute 2 into the function:

\[ f(2) = 3^2 - 4 \]

Calculating \( 3^2 \):

\[ 3^2 = 9 \]

Now substitute that back into the equation:

\[ f(2) = 9 - 4 \]

\[ f(2) = 5 \]

It seems that none of the provided responses (1, 2, or 9) match our calculation of \( f(2) \). The correct answer should be \( f(2) = 5 \).