Find the requested value. -$f ( - 8 )$ for $f ( x ) = \left\{ \begin{array} { l l } 6 x + 1 , & \text { if } x 12 \end{array} \right.$ A) 64 B) $- 47$ C) $- 64$ D) 49

Question

Find the requested value.
-$f ( - 8 )$ for $f ( x ) = \left\{ \begin{array} { l l } 6 x + 1 , & \text { if } x < 8 \ 8 x , & \text { if } 8 \leq x \leq 12 \ 8 - 7 x , & \text { if } x > 12 \end{array} \right.$
A) 64
B) $- 47$
C) $- 64$
D) 49

Quizplus · Accepted Answer

Since $x = -8$ falls into the first case where $x < 8$, we use the corresponding function $6x + 1$. Substituting $-8$ for $x$ gives $6(-8) + 1 = -48 + 1 = -47$.

Find the Requested Value f(−8)f ( - 8 )f(−8) For A) 64 B)

Find the Requested Value $f ( - 8 )$ For A) 64
B)