Question 1 A)If f(x)=x2+4x+8f(x)=x2+4x+8, what is f(−1)f(−1)?(1 point) Responses 3 3 13 13 5 5 11 11

Answer 1

To find \( f(-1) \) for the function \( f(x) = x^2 + 4x + 8 \), we substitute \( -1 \) into the function:

\[ f(-1) = (-1)^2 + 4(-1) + 8 \]

Calculating each term:

\[ (-1)^2 = 1 \] \[ 4(-1) = -4 \] \[ 8 = 8 \]

Now, combine the results:

\[ f(-1) = 1 - 4 + 8 = 5 \]

Thus, \( f(-1) = 5 \).

The correct response is 5.