Use the following function rule to find f(–8).

Question

f(x) = –7x − 12

f(–8) =

Answer 1

To find \( f(-8) \) using the function rule \( f(x) = -7x - 12 \), we will substitute \(-8\) for \(x\).

\[ f(-8) = -7(-8) - 12 \]

Now, calculate \(-7(-8)\):

\[ -7(-8) = 56 \]

Now substitute back into the equation:

\[ f(-8) = 56 - 12 \]

Now, perform the subtraction:

\[ f(-8) = 44 \]

Therefore, \( f(-8) = 44 \).